I think that Michael will have amnesia cuz that's one of the things Rogelio was talking about as a classic Telenovela twist! I mean, they basically lead up to it. Another one of Rogelio's plot twists for The Passions of Steve and Brenda is that "the maid was his mother" which I totally see as foreshadowing that Raf's parents are someone who's been there all along. I also think that reintroducing Michael is just a way for Jane to finally choose Rafael (cuz personally I think that made the most sense from the beginning).
Last note: they mentioned that the narrator will be revealed as someone in the show and I think it's gonna be Mateo years later OR Alba's husband Mateo.
Ok done with late-night telenovela theories now. ;)