I don't think I will ever see another fighter like Fedor in my lifetime. Someone that has beaten the resume of fighters like he has. The dozens of fighters he has beaten that have gone to the UFC or to other major promotions.
I think that the UFC has deep enough pockets to get anyone they want. And unless it is some sort of family business, I don't see another fighter doing what Fedor has done. Like if Scott Cocker's son became an amazing fighter....or Bjorn Rebney's son. I thought that once BJ Penn left the UFC to fight Gomi under his brothers promotion we might never see him again, but he fought, he won, he came back, and got paid more.
I am not sure how much it would help anymore. I think the UFC has become so big....and the fighters salaries have become public and some of the advertisers and sponsor money has also become public....it is hard for anyone to compete.