It's come to my attention that Tiago Sousa, principle r&d graphics programmer at Crytek, deleted his tweet about currently working on DX11 for Crysis 2... Looks like the cancellation of a DX11 patch may be the sad truth after all.

How much you wanna bet they're going to sit on it until a Crysis 2 expansion set, ala EA "lets charge for EVERYTHING" style.