If there was more depth in the game, it would be neat if the trainers were more perceptive and dictated training according to their fighters needs. For instance Eddie Futch using a slip rope to work on Frazier's head movement in preparation for Ali. They could work various punching mitt drill working on particular combinations, counters/responses, etc. In working with a fighter for many fights it would be interesting if the fighter improved as well, more polished punching, fast and clever counter punches, and better conditioning. Bringing in the in all of the Coaches' unique mannerisms would give the game a lot more emotional depth. Angelo Dundee would then be fun to listen to if someone your opponent is winning. It'd also be neat if they could give you dynamic advice while you're fighting, tell you how to counter, etc., and not the canned "coody-catcher-inspired" advice in between rounds.

I heard that power is much more specific in this game so it would be interesting if they helped work on developing your weaker punches, and that in effect would increase power on your left/right side.

I'd like to see a lot of old time coaches in the game. It'd be awesome if you could make cabs for trainers, and be able to program them. This would be worth pitching to the designeds for ideas for FNR5.