USS Excelsior wrote:
Do these universes get created, or they always existed. If it was created then the Narada's appearance created a copy of an entire universe and a copy of everyone in it.
So the NuUniverse has no past and didn't exist, therefore no appearances by future visits or anyone else.
I don't think of a new
timeline being created. I interpret it as one timeline branching into two. That before 2233, the prime Universe and JJVerse share a past, in that sense they both always existed.