Something that this game lacks that BG1 and 2 did have is full combat AI.....Now obviously I know this is turn based and proper group positioning really really makes fights easier but I can't help but see all the complaints about difficulty, unfair dice rolls, and slow combat from people still struggling to grasp that this is not a side scrolling hack and slash and think that not having to control your companions might alleviate some of their pains.
Similar to BG1&2, you could have per class options on ranged, aggressive, spell use, etc and just have the first turn of each character have the option to select which AI you want to use for that fight. Complainers will probably still complain....but it would speed up combat, throw less numbers to understand at new players, and a non controlled miss that's done in 2 seconds doesn't sting as bad as positioning your guy for high ground, aiming at a 1 hp mage, seeing a 95% chance to hit and watching as he shimmies to the side leaving you with nothing but an End Turn option.
I don't think this would take much development time....combat AI's for each individual enemy already exist would just take a little tweaking. This could already be planned for story mode or something but I haven't seen anything about it.