More Demigods, more (and more interesting) items, and more dynamic, interesting maps with strategic elements and functions (like elevation, hiding places, interesting uses of fog of war, etc).  Those are the three main things I think of at least in terms of gameplay.

Lots of issues design wise (Doing a 3 player free for all, or having more than 2 sides). 

Where do the minions/creeps move?  Which citadel do they attack?  The game as it is designed right now, is very much a *Us* Vs *Them*.

Personally the main thing I'd like to see is more Demigods followed closley by more maps.

-Jara

My wish list, for what it's worth:

1. Eliminate Generals vs. Assassins.  Rebalance accordingly.
2. Let all players purchase idols.
3. More minion control options.
4. Controlling a flag gives players on that team an active power (basically like an active item) that depends on what kind of flag.
5. Player rank is displayed in the lobby.
6. Player hardware rating is displayed in the lobby.
7. More Demigods including: Geezer (little old man Chris Taylor came up with who looks harmless but can switch into a really scary thing think Nakor from the Raymond E. Feist books), A Builder Demigod who can construct things on the map (various little defenses, totems that do special things, etc.), An Elemental that has various spells of earth, fire, water, and air, and a super Melee guy who is very good at close range combat but not too large and has lots of spells that provide defense or offense specifically in melee or area around him. 
8. More maps including more small maps.
9. Clan-based tournaments: Think light vs. dark but replace that with your clan.
10. More items that do interesting things: An item that makes a Demigod invisible for a short amount of time, An item that will cause creeps to switch sides (where you gain the experience as if they died), etc.

That's just 10 off the top of my head.

I wouldn't mind more defensive heroes (love your builder hero idea frog, one of my favorite hero types), possibly some map control ones such as a frost warrior who can put up ice walls with a really long range on it or something akin to DoTA's Tinkerer with more than just Reg's mines . Variety in maps would be delicious, I agree with some adding some new region types: tropical\forest\sea maps.

Item recipies would be nice too to complex-sauce gameplay a bit. Wink, wink.

I havnt played the beta at all, but I was a big DotA fan. This game isnt DotA but I think the initital 8 Demigods could use some new friends to add to the variety. Basically I think it is well known that new Demigods for a game of this "genre" are obviously going to happen.

I heard an interesting idea, not sure who it was from so I cant give them their rightfull credit, but instead of favor points being able to purchase just items, maybe have new skins for each Demigod that could cost a LOT of favor points, I mean, I personally enjoy that extra flair. "I worked hard, night and day, and now I get be differentiated from someone who just got the game" but not in a SUPER item sense, just a, Oh check out that Unclean Beast with the purple brown and green sickly skin instead of the red and black that he is now. Not sure if thats something you guys would agree with me on? Comments?

Really all I would want to see is the typical for a game like this. New Demigods, new items, eventually new maps (But honestly, we all played DotA on the same MAP for how many years?) we just got new heros and items put in and it kept it alive.

I'd like to see that favor points add some sort of cosmetic option, thats all.

thoughts?

-Mord

make death not just waiting on your butt.  Also, tournament/competition focus updates. 

And the best one of all, the ability to buy multiple taunts with favor points.  Once you buy a taunt, u should be able to customize what it says as a caption

I think people miss the point with creeps.  The fact that they are weak is what MAKES the Demigods feel powerful.  If they were tough, there would be no contrast and your demigod would feel weak.

That said, creeps + towers = ouch and can take you down.  So it's not like they are inconsequential at all times.  Plus creeps do get better with upgrades (Clerics, Angles, Giants etc, etc).

Yes but I believe given time something like that could be done in an expansion. And the game would be MUCH better for it.

It's probably not like that because the demigods arent forced to be on their side (Meaning Evil demigods dont have to be on the dark team etc.) So it would probably be a bit wierd seeing angelic regulus fighting along side an army of demons. Also it would cost alot more money hah. The creeps (with the exception of angels) Are pretty alignment nuetral atm, and I think resources would better be spent on other things.

A purchase that allows one "super-creep" to join in the next wave of reinforcements. You can only buy it once and it will join in for only one wave.

Could be pretty interesting as tatics could revolve around when to get the super-creep and joining in an offensive as soon as it pops up. Just a thought.

Edit~
Nearly forgot. More importantly I want:
Potraits or health bars of all allies (and maybe enemies) placed somewhere on your screen. This way as Sedna (and other DG's) you could easily select whom you want to heal and you can get an overview of your allies health.

Don't get me wrong, I understand that completly. In both HOSK and DoTA Heroes were obviously far more powerful than creeps, especially as time went by. But never were they something you could just ignore and never did there have to be a tower nearby before you worried about them. Seeing a soft, delectable caster hiding among a group of creeps and knowing that jumping in meant certain death made the game deeper. You could lead the creeps off with summons if your hero could do so, kill them if you're an aoe build\hero, or stun\sleep the hero and let their creeps run ahead so you can kill them alone or with the hero.

 In all cases you were still powerful compared to creeps, they just played a role in game other than being xp and money sources. I just think creeps should matter more, especially for those playing as generals. Something to think about in the future, I'd wager.

Having a hero who just buffs the crap out of creeps for short durations would be interesting as well. "Puppeteer" or something similar.

I agree. Light and Dark wouldn't work since as was just stated a "good" demigod can be on the dark team. Still, unique appearance creeps for each side would add a lot to the game visually. Even HOSK and DoTA do so, but I understand the constraints here. Very likely better left off for the modders to do.

Except for more Demigods, here's my wishlist

1. Some kind of buffed creep that spwan every other wave. Like a big minotuar or big priest or whatever, so the creep won't balance out and it keep pushing back and forth by themselves. Alternate the spawn of these super creep between 2 side. This will make the battlefiled changing more often.

2. same as BlakeJack i think light and Dark creeps should have different models, so it's more immersive.

3. Make your skill tree and shops accessible when you are dead and waiting, so at least we can plan what the next skill, item to get. Also it'd be better to be able to check the price for the artifacts from afar. Having to remember all the price is not a good thing to make a better player.

4. Maze map, to make full use of teleporting items. Or the map that require obviously different tactics than other maps. Since now all the map feel a bit the same just the reskin, position and stuffs. Okay it's different but not an obvious different that new players can notice at the first look.

The creeps here is NOT that weak actually, here's the description since I heard you haven't play before.

1. Starting creep is only melee+archers. These are weak creep but you can't solo them by yourself at LV1.

2. Creeps can be upgrade to make them get new unit each wave, like get a priest that can heal demigods or the creeps themselves. The upgrade goes like this Priest >>> Angel >>> Catapult Dinosuar >>> Giants (i may be wrong just write it on the go).

3. All the creeps stats like HP and Attack Dmg can be upgraded sepereated from the new creep units. At fully upgraded it's 4 times more HP,Atk than the original. The same thing apply to towers and defensive structures as well.