Guys I don't really see a Problem here..
If the Champ wants to participate in the GP then thats his choice, cause he's the champ.
If MK wins the tourney then he wins the trophy and the prestige of holding 2 belts and 1 GP throphy!
If MK loses, then he gets eliminated from the tourney and the winner of that tourney will challenge him for the belt and wins the tournament trophy.
just like it's done in Strikeforce right now with Overeem.
But I would personally include the upcoming Dream event into this GP. Otherwise it would really take a while.. thoughts?