I have seen on several fan sites the idea that the "prime universe" is not gone and that this is an alternate universe etc. I am sorry but I am not buying that. Spock clearly tells Kirk in the mind meld that he is from the future. On the bridge Spock says that Nero changed the time line after he came from the future and destroyed the Kelvin. Uhara even says "an alternate reality" not "universe". This is considered the new time line and all that happened before is now lost. If someone went back in time and killed Hilter the future that they know is now lost. You could clearly see old Spock developing new memories when Kirk is made Captain.
The writers said the story does not wipe out the prime timeline, but rather creates an alternate branching timeline (google "many-worlds interpretation of quantum mechanics") -- and since they wrote the story, I have no reason to believe otherwise.
You can argue that some other Star Trek time travel stories established that when you go back in time, you go back to
your own timeline, not an alternate one -- but this is a new Star Trek with new rules, and I'm OK with Star Trek having new scientific "rules" -- just like I was OK with all of the conflicting scientific rules of past Star Treks. TNG changed the science of TOS, and this film further changes that science.
The many-worlds theory of quantum mechanics was not as widely-known in TOS's days, but I suspect if it was, we would have had stories regarding alternate/branching timelines. The many-worlds theory
was around during TNG's time, hence the inclusion of this real-world scientific theory into the TNG episode
Parallels.
The people who care about the prime universe carrying on can use this "many-worlds theory" explanation to ease their mind, and the people who don't care...errr...don't care.
You guys honestly think that if they thought it would make a good movie or whatever, TPTB wouldn't resurrect the old timeline just :: snap :: like that? Or parts of the old timeline? No matter what anybody else has said or not said to the contrary? That they wouldn't come up with some kind of Trekkish explanation that allows them to do anything they want?
The plain fact is that TPTB will use as many or as few of the elements of older Trek as they want to - and that includes alternate universes and parallel universes, those that resemble the old timeline and those that don't.
Just as they've always done with Trek. Always. Well, since 1966, anyway.
So anybody who thinks he has the definitive answer is just kidding himself.
Exactly...
Even if the prime timeline is no more
in Abrams Universe -- then so what? What difference does that really make? If someday someone thinks they can make a marketable post-Nemesis film with some of the TNG crew (or even some of the TNG cast) set in the "prime universe", there is nothing stopping them from doing so...or a film taking place in the prime universe's 25th century with a whole new crew.
...although I can't help but wonder why it would be so important that it take place in the prime universe, except for perhaps needing the planets Vulcan and Romulus to tell the story they want to tell.