The first crysis was a mediocre mainstream shooter with the suit gimmick holding it up, if you turn the graphics down you'll understand what I'm saying. It follows every shooter trope in the book (vehicle section, stealth section, defend the 'x' section, etc.).
While Crysis:Warhead was the last stitch through the nose for me, Crysis Wars was a step in the right direction because it had gameplay similar to the Battlefield games (in my opinion, the best series of the genre). Crysis 2 seems to have forgotten this step forward and copied their multiplayer gameplay from the Call of Duty games and added the suit. That's not a good thing.
Good modding tools are probably the only thing that could make me come back to this franchise. Good mod support is what keeps me coming back to games like Half Life 2 and the old Battlefields.
Give them the option to add zombies and they will come.
If people play the leak and find it lacking, I can't blame them. I actually have bought most of the games I've pirated over the years including Grand Theft Auto 4 (3 times, once on Xbox, one to replace that one when it got scratched beyond repair and once on PC so I could mod it), Minecraft, Battlefield 2 Call of Duty 4 and the Serious Sams. The only game I didn't later buy legitimately was Halo 2, because it was a shameless port and shit.