1. Allow clicking on the minimap to quickly take the screen to that location.
2. Display demigod colors/something to show which demigod it is, on the mini-map. At the very least for teammates, this is crucial for keeping your awareness up.
3. Allowed to to see the mana, inventory and stats of teammates. Yes you can type or use vent to communicate items/stats/strategies/combos, its just far easier and faster when you can click once or twice to get that info. Possibly have icons representing each teammate somewhere on the screen with health and mana bars, that when clicked will display their stats and items screen. For a rough idea, see WoW party bars.