id imagine a large part of their business plan was leasing and selling of the crytek engine, much like it was with ID softs quake Iterations down the years.
Not sure how successful that was for them, but with the high end development leveling out to very few new ip's, and a near non existant middle market, id imagine it's a tough sell.
You're only going to lose if you can't crawl back the massive development costs of something crytek, a single ip wouldn't have cut it for any of the players in the market... unreal, id's tech, dice... costs too much. Makes you wonder how bohemia get away with it, maybe they don't change that much:/