DayZ at the moment suffers from what I feel is an imbalance:
Gear is more important than people.
I would like to see Character Progression in DayZ but done in a transparent/invisible way rather than the traditional RPG way of stats and figures (at least in what's presented to the player, the back-end will always need stats)
What I'm proposing is character progression across varied skills that would actually give value finally to people, which I believe is sorely missing in this game.
Instead of currently where players focus on loot quality, character progression would allow players to finally focus on player quality and what a player can offer you in a given situation rather than what gear you can get off their cold dead corpse.