HAZE also had an online similar to Crysis 2 but after a few weeks the servers were empty. Crytek also abandoned HAZE because the HAZE community left. The reason the HAZE community left is that Crytek never released patches to fix the known SP bugs and MP bugs.
My point is I think Crysis 2 has become the new HAZE. Its only going to be popular for a few weeks before people stop playing due to lack of support for the game. And after they realize the games MP is empty they will abandon the game.
I understand Crysis is Crytek's baby, but it seems as though they are not willing to feed there baby. So far the first week of Crysis 2 is turning out exactly like the first week of HAZE did. The similarities are striking between HAZE and Crysis 2 in terms of release and lack of support.