N-no? There's Nathan Summers who was born in 616 before being sent to be raised in the future - and I don't think he existed in Rachel's world. And there's Nate Grey who's from Age of Appocalypse but while time travel was involved in the creation of AoA I don't think that would be a fair description for him (and he really is a sort of AoA equivalent to Cable - except with a different mother).

Unless there's someone else which I forgot/yet to read about from the Days of Future Past or some of the related story. Which of course is possible.