No way it's ever coming back to MK, alas.
I think MK and DL each have their own things that are positives. Each has its own attractions that the other doesn't have. We have CoP, Country Bears, 7DMT, the Peoplemover, Laugh Floor and also a much larger physical space. DL has more dark rides, with Pinocchio, Alice, Mr. Toad, Roger Rabbit, Indy, the subs as well as a much better Pirates.
Wait. You're right. DL does have better stuff than the MK.
We have two more parks than California does, though, even though the Studios are still half-closed for the next year or two. I'd much rather have Epcot and Animal Kingdom than DCA.