Crytek is going to be fine by selling its engine to other companies so there isn't really any loss here for them. Aside from that if they are smart they should understand that the way Crysis has made high end rigs cry out in pain will make it the defacto game testing standard for a while so sales, while they may never be what they wanted, will continue at a steady rate.
If they haven't done so already it wouldn't hurt to get Crysis available for download on steam also.
You can say the same about Epic and their engine as well, they just won't have the bump from being known as a game that makes your PC cry.








