One thing I personally would love see is an overhaul of the talents.
There is a large pool of useless/inferior talents. There are some that I would kind of like to use if improved or perhaps incorporate "secondary talents" or something. The grenade tossing talents just for one example could be combined to give the AP and range boost.
Or the one that gives food bonuses could be tweaked and made as a "secondary talent".
This would all be a buff for characters of course, but I don't know I am sure there are better ideas.
Right now there are like 5-6 talents that are must haves across the board rendering the other choices a waste of a scroll bar.