[citation][nom]dimar[/nom]I'd prefer some Star Trek after TNG, in the distant future. Stop using the past stuff.[/citation]
This is "new" in a way as its a alternative history/universe.
Because of so much history being altered this means even the existing characters have lived very different experiences which makes them very different people. All their adventures will be unique and all very different. This is also can not be considered the past in Star Trek as it is the alternative dimensions present. TNG for example hasn't happened yet and do to the changes in history may never.
Think of it as if Bruce Wayne never lost his parents. There would be no way he would be BatMan in the future. He would be a entirely different person living a entirely different life.