Well I think it would make a spectacular performance as I rate both of them as music Gods.
Neither needs each other as they have proven track records of being recording and performing superstars on their own.
Michael needs to get back on this planet and get down to hard graft, perfecting a show that ranks up there with his previous form - he still has it as far as I'm concerned, it's just that he doesn't seem to know where he has mislaid it!
Prince gets better with time and he should put together a show with his old stable mates - Sheila E, The Time, The Revolution, Apollonia 6 and even a guest appearance from Sheena Easton!
Michael could come together with his brothers, Janet and some of his previous collaborators.
What a show!!!!! Alas it won't happen, but I do hope Michael can find the spark and get on the road again - he was brilliant at his peak - then again he maybe isn't interested in performing anymore.