Man, this is GREAT news! I hope that this opens the door for some big cross-promotional events. Imagine some type of Superbrawl with a card like this:
Franklin vs. Henderson
Liddell vs. Silva
Cro Cop vs. Fedor
Tito vs. Arona
Quintus: People should know when they are conquered.
Maximus: Would you, Quintus? Would I?