To succeed, Demigod will need random Demigod Selection as an option for certain game modes - the current default "both sides pick their Demigods then click ready" simply isn't good enough.
It will also need hidden Demigod selection, so that you can't tailor your team to the other sides team who would then tailor their teams to your team so you'd tailor your team to their team... This can also be optional.
I'd also like some information as to how much they expect us to invest in every Demigod. I know it's been thrown arround that'd you have some persistency to characters, but I can't imagine that you'd just play game after game with your character at max level, so for those of us who only ever play -ar dota games (everyone's character is randomly selected) please put in these features as an option.
**Edit** Well according to this new interview persistency comes from achievements that you can use on your Demigods. Kind of a shame, a game mode where you use an already leveled and itemized Demigod for a very fast, very brutal "arena" style fight would have been an interesting extra addition.