This Brock Lesnar NUCLEAR HEATZ / showing up at UFC 184 thing has a couple of really hilarious-in-a-train-wreck-sort-of-way scenarios, assuming it's remotely true and doesn't get cleared up beforehand.
1) If Brock is leaving after Wrestlemania, which will probably be pretty obvious beforehand--Just
imagine the absolute shit storm the main event will be. Goldberg/Brock was bad, but most of the type of people that are going to be at Wrestlemania will absolutely loathe Roman Reigns still and will know that Brock is leaving. I could see a very, very strong potential for a crowd reaction way worse than WM20--or probably the longest sustained "Daniel Bryan!" chant of all time.
2) It would be absolutely hilarious if Brock remained in pissed-off-BROCKSMASH mode towards WWE all the way up to the main event and went into business for himself during the match.
I'm actually way more interested in the main event now just to see what level of mega-clusterfuck it can reach, which, you know, means it'd be a really brilliant work.
Either way, Road to Wrestlemania: