Maybe the whole 'style' thing is outdated. Everyone knows everything now, but individuals will always use their individual strengths against their opponnent's area of relative weakness. Ex: a G n P guy takes down a striker, a striker refuses to go to the ground against a BJJ expert, a BJJ expert looking to feign a striking attack in order to get close enough to clinch, etc...
Renzo Gracie said, "The most important, and least practiced part of a fight, is the takedown."
I always think it is a victory for the sport of wrestling when a big name wrestler wins, such as Randy Couture, Matt Lindland, Matt Hughes, etc...
But really MMA is one complete entity, maybe style is outdated.
There are no styles in the world of pro boxing. How could MMA be far behind as the skillset is honed and pruned more and more by the ruleset?