I still don't think Pearson will ever be in title contention. He might have a decent takedown defense, but there's too many mid to high level guys that are pure wrestlers. Can you see him sprawling and brawling for 3 rounds against: Sherk, Griffin, Edgar, Maynard, Florian, Dunham etc.? I can't.
I can't at the moment, but I think he can grow as a fighter the same way all the above did. He seems to have the right attitude to improve, I think he'll end up coming to the US down the road and hooking up with a camp that will help him improve his overall game. If he stays in the UK the answer is simple, No, he won't be in title contention.
He has flaws just like Edgar, Maynard and Florian did to begin their careers. Just like them, he has the dedication and drive to improve on his weakness. I really like his overall character, I can't see him accepting mediocrity.