As long as it isn't a part timer or someone who'll end up a jobber five months/years later I'm cool. With that said my picks are, Roman Reigns, Somoa Joe or Nakamura. Roman is the one to do it most likely and if they turn him heel afterwards that could really get someone else hella over. Joe because...its fucking Somoa Joe, he's been the most dominant force in NXT and if they bring him up with that attitude I could see him being a threat to Lesnar. Nakamura...well it'll be a cool rematch to see:
But knowing WWE they'd probably say fuck it and have Heath Slater beat Lesnar.