All he has to do is beat Overreen on New Years weekend in December 2011. While many think think this is impossible, I disagree with those people. Some fans go as far as to say that Lesnar won't even show up for the fight with Overreem. I disagree with those people also.
Lesnar will show up and hurt Overreem. That is a fact and not an opinion. He will then snatch his belt back from JDS in the spring of 2012. That is pure speculation.
The world is his again. While this post adds no insight or logistics about anything, it is the truth. I'm sorry to those who read this. I'm also sorry to everyone that dislikes Brock because he will be your champion in a matter of months and you can't say he didn't "earn" it this time.