I think we all need to see Bret Hart at least in a farewell speech, if not a farewell match before he goes (I hate the fact his last match was a cage match vs. Nash on Nitro that no one remembers). It's just a must for the career he had. But, he needs to put his health over anything else because god forbid something else bad happen to him.
Angle vs. Bret would be still the greatest thing ever, though...even if the match sucked.