If it happens I think the video game will be an excuse more than anything else. Fitch and Koscheck are both in Franklin land at 170 where they have no plausible route to the title but they are so good they keep almost anyone they fight from getting a shot. Additionally they won't fight each other, so they have very few options for fights.
I think if they drop these two it is like dropping Lindland. Setting an example on royalites is just a bonus for the UFC. I think Cain would just be friendly fire (that and they remove the only guy who MAY be able to outwrestle Brock).
Either way IF it happens to all three it's the most underhanded thing the UFC has ever done. Especially after Koscheck stepped in on no notice to save a whole fight card for them and then put on a great show.