The sport of MMA has eveolved so much and of course its great now to see weel rounded fighters matching up for the ultimate in kinetic chess.
But the kind of excitement generated by the early UFC's and different arts being represented and fighting each other.
Someone could have a niche in finding 1st time fighters of various arts like the early UFC's and develop tourneys with these one dimensional fighters. Kung fu guys, pure wrestlers, tkd, some armed forces veterans, off duty cops, etc etc. YOur classic throwback MMA event, Would probably have to do the tourney in some third world country or an Indian REservation.