Yeah…if this is Rumple’s happy ending (which it is), then I fully expect to see 14-year-old Baelfire. Why wouldn’t Isaac be able to give Rumple what he always wanted (to raise his son)? And…yeah, wouldn’t Rumple still want magic, even if it’s good magic? And if Rumple is not the dark one, how is he even alive? He should’ve died 300 years before Belle was born. And how is Hook alive if he never went back to Neverland to seek revenge on Rumple for killing Milha? Small details…but ever so important.
Read this theory I posted on the last page:
From what I gather, what is happening with this AU is that the past isn’t technically changed, but rather personalities and memories are suddenly changed. Isaac is starting this new story from a clean slate with the characters he is writing about. After all, this is a new book entirely entitled “Heroes and Villains”, rather than altering the original “Once Upon a Time” book.
I also mentioned how this would also explain why Henry’s birth isn’t retconned, if the past isn’t literally altered to make this AU work.