I hope to see a new inventory system in the stand alone. I found the Arma 2 inventory system clunky and confusing. Now that I've played for a while and have it down I still don't like it. I think a drag and drop inventory system would be much more intuitive for new players and just smoother overall. Something like when you hit "G" you get a window for gear on the ground/corpse, a window for your bag, window for your toolbelt and window for whatever that other section is called. Then just do a simple drag drop to place things.