For me im glad Ric didn't leave NWA in 88 as Id heard about him wrestling Savage at Summerslam 88 but then we wouldn't have been treated to the 1989 feud with Ricky Steamboat.
If they had kept Flair in 93 as Main Eventer who would he have feuded with? Hogan, Piper, Warrior were all gone and Randy was back commentating.
Fair question. Just at first glance, I'd ride the Perfect feud out to Wrestlemania, do tags with Luger vs Hart/Perfect/Savage/etc. on the house shows after that, have Hart beat him in the final of KOTR, transition him over to Crush to help get him over (he'd be perfect for that), then feud him with Ramon in the fall and Luger over Winter. You could slot Tatanka in there somewhere too if need be. The point would be to help get some of these guys over while still keeping Flair strong ( to alleviate the fact that he wanted to be towards the top of the card. Itd be a matter of presenting these feuds as important).
Of course, the other choice is Undertaker.