Rich will not come back.
He will never be the champion again. He's an average fighter in the grand scheme of things.
He can't even throw a kick. I saw him performing a roundhouse with nothing behind it. You're supposed to turn your body into the kick. It's basic. I learned how to kick properly in karate class. You would think a champion would know this. lol. The only people I see that throw kicks right are Cro cop, Silva, Bas, GSP, and a select few others. His punching is sub-par too. Any boxer in his weight class would easily knock him out in a slugging match.
This marks a new era in the UFC, similar to the changes in MMA created by the Gracies(everyone understanding the importance of groundfighting). The likes of Rich Franklin will be relegated to the mid-bottom card.