8-10pm on Network TV? Hello PG era forever!
I don't know if Fox would want pure PG going from UFC to WWE. What is interesting is Fox potentially looking at buying WWE to avoid losing TV rights which is what they wanted to do with UFC before the value ballooned up.
Smackdown also being on FS1 would secure them as the B-show for one, and I think wouldn't be the best thing for them while Raw is on the main network. WWE on Fox in general just seems like it'd be weird, but I don't know. We bitch about three hours but WWE will have a lot of problems getting that roster in a two hour setting considering they specifically grew Raw's roster at the draft because of the 3 hour slot.
As for Undertaker, I have no interest in ever seeing him again if it's not for the HOF. He's old, he's slow, he can't work anymore. Every year I have to hear about how much better he's looking only for him to stink up the joint. His last great Wrestlemania match was against CM Punk, and his last great match was against Brock Lesnar in the Cell. Since then he's tailed off significantly. It's kind of sad to see considering his in-ring work was getting better with age and then he drastically fell off.
Cena/Taker is also about 5 years too late.