And Admiral Janeway's appearance in Nemesis...?Brolan said:
I've asked very similar questions in the past, and have come up with the only logical solution to all the problems involved with "Endgame". That is Endgame is an alternate timeline that the Star Trek universe could have taken, but didn't.
Janeway carried out her plan, as shown in the episode, but the original timeline was restored by forces unknown.
The real timeline is where Voyager took the additional 17 years and arrived at Earth without any timeline damaging advanced weapons. And without erasing Voyager's impact on the Delta quadrant.