The battles are very much like Chess or rather turnbased strategy - there is nothing wrong with having more units because there is time to consider what to do, though naturally a lot of Auto Battles are being done. If battles were RTS alike the game would need some more active AI – in games like Starcraft, Company of Heores, Red Alert, Total War Series and many others some AI is needed – but overall it is the player that decides the actions.
Having control of only one character while not being able to decide what your other units might do is not really a good idea – it would easily turn to annoyment – already many complaints and suggestions in regard to autodefence etc. cant help thinking what would happen when your own units are doing stupid things while the character is being played briallianlty – somehow it does no add up. We are far away from something like Dota or similar charater based games.
Never the less having special characters with abilites is a viable possiblity and could be included into the current turn based platform wihtout too many changes in the visual design. The challenge would be to balance it in such way that a character could not by itself perform a battle wihout additonal units – and then we are looking at minor abilities hardly enough to justify as a Character.
For such a proposal a far more detailed prospect is needed – even to get a constructive debate going.
So as currently proposed.
-1