I think it's impossible to rewind the universe, so no sensical theory should say anything about that. A theory that theorizes about what happens if something impossible happens would seem to be waste of time. :-)
But I think the answer is: The outcome of a quantum experiment is random. So if the same experiment is repeated, it should most probably give a different answer, unless the answer is always the same, or one of only a few possibilities.
I think it's impossible to rewind the universe, so no sensical theory should say anything about that. A theory that theorizes about what happens if something impossible happens would seem to be waste of time. :-)
But I think the answer is: The outcome of a quantum experiment is random. So if the same experiment is repeated, it should most probably give a different answer, unless the answer is always the same, or one of only a few possibilities.