It's not really a new or radical idea but I'd quite like for demigods to have some kind of occlusion radius vs other demigods, both friendly and enemy.
With the sheer number of NPC grunts I think it's better to be able to walk through them, but with other demigods it could help with a few things:
Firstly it would make rook's large size count for something more than being a more obvious target.
Secondly, without it currently demigods that focus on the same target tend to stack up on top of each other, which it makes very hard to target any specific one.
Thirdly it just adds all those little nuiances of "body blocking" which gives careful positioning more value.
Finally, if it were added to a general's minions too it would give a purpose to the high-hp/low-damage minotaurs as well as benifits to controling minions rather than box select -> mass attack. It would even make "knocks back small units" a more useful effect.
On the other hand I can't think of any definitive drawbacks to having demigods block each other's movement, no maps are tight enough to completely block a lane so that won't be a problem.
Thanks