They have a lot to improve in the Stealth and non-sniping gun mechanics. They better keep the WW2 setting but switch to the pacific, that would be awesome. The COOP modes were the best part about the game. I'm sure it will come to the PC, that's probably where most of their sales were (hoping).
Surprised by the low number of sales :|, amazing that a million can still get you by these days - very good to hear!