I'd like to see dungeons with more mechanics like: puzzles, mazes, team coordination. You know, parts where it would require the team to split up, enter codes that could have been found through out the dungeon encounter to progress.

I'd also like to see the scattered chests contain items that are actually useful rather than a potion that'll collect dust. I dunno something like 1-2, maybe even 3* mats with a chance for some gil (ie random player gets the item drop and everyone else gets a select amount of gil 500-2k RNG style per player).

Just some ideas...