I believe the jury's out on what happens when Moira dies... does the entire universe reset to the time of her birth or does a parallel timeline split off (9 so far)?
PoX has been showing us 4 time periods: X^0, ^1, ^2 & ^3.
X^0 and 1 strongly appear to be the HoX storyline, which we're told is Life X (although we don't know whether this is the 616 universe).
X^2 and 3 had looked like a continuous story primarily because of the linking character Cylobel who's been in a Bath for around 900-1000 years but this would only be possible if the universe did not reset on Moira's death as we're told occurs after Logan did what he does best.
So, if the universe resets on Moira's death, then X^2 and 3 could not be the same timeline. This then could only mean X^3 is in Life X, which seems very unlikely to me for numerous reasons which I won't go into.
I find myself left with the improbable scenario that the narrator was unreliable or a liar when he said "so ended the 9th life", and Moira was plucked from the jaws of death by Nimrod and then lived until X^3 (she might be the very old blue skinned mutant present at the Phalanx's arrival, or she could be one of the other prisoners in a Bath next to Cylobel -- the Librarian clearly referred to more than one such prisoner, and Omega Sentinel had earlier used the words, "this is not a death you can escape from").
Apart from those two options, I can't see any other way we the reader could have reached the tale of Ascension in Year 1000 -- whaddaya think?