About 'waking up tomorrow in a male body'.
Of course, if you're a woman, it isn't possible for you to wake up tomorrow in a male body.
But this impossibility isn't just empirical or scientific: it isn't just that, as it were, science isn't sufficiently advanced yet, but that one day it might happen. No: the impossibility is logical. Whatever advances are made by science and technology, it could never be possible.
Why so? -Because nothing would count as you - a woman - waking up in a man's body. Whoever that is, there under the duvet, waking in a man's body (that man, in other words), it cannot - could not - be you, because you are a woman.
Human beings are essentially embodied. And individuals humans are related essentially to their individual physical bodies.
Say it again: if you are a woman, no matter who it is waking up tomorrow with a male body, it cannot - and could not - be you.
[--Even René Descartes, for all his mind/body dualism, was aware of this. "I am not merely present in my body as a sailor is present in a ship," he said, "... I and the body form a unit." (See his Meditation VI ... you may find his reasons interesting, too ...)
--And (just one more 'even' ...) even Christian belief, as expressed for instance in the Creed, requires "The Resurrection of the Body" at the end of life on earth. -Why? Because without your body (yes, that physical thing!), it wouldn't be you enjoying the advantages of Paradise (it wouldn't actually be anything ... but that's maybe enough metaphysics ...)]
[Just to be clear ... I am neither Cartesian nor Christian. Just I want to put to rest the nonsense about 'born/waking-up in the wrong body' and to point out the independence of its nonsensicality from denial of dualism or even of immortality.]