"Welcome."

I finished this strip, before I bought Giant-Size Age of Apocalypse #1, the third of five one-shots with the now-mutant Ms. Marvel travelling back in time to various big X-events to fight what's left of Legion. (The David Haller persona, that used to rein the others in, was gone; leaving a power-hungry monster.) Legion even mentions, this is one place he maybe never saw, because he caused it by killing his dad Xavier. Forced into a truce, Ms. Marvel and Legion eventually find the X-Men, the few that are left, preparing to die: this was the night before their final battle with Apocalypse, which of course turns out differently here. (And not in a good way!) I'm not sure how Legion would know this, but he mentions that world was about to "die in hellfire," which may or may not be overdramatic. 

If memory serves, since I don't have it next to me: in 1995's X-Men: Omega, the humans bomb Apocalypse and his forces, which maybe wasn't necessary, since Magneto tears him in half. Which also maybe wasn't necessary, since doesn't Bishop use the M'kraan Crystal to fix the timeline? I don't recall, exactly how big a nuke the humans were dropping, though: a good-sized one to get Apocalypse, or a planet-killer like the end of Beneath the Planet of the Apes. We next see the Age in What If...? #81, which you could consider an alternate reality or just a continuation: Magneto saves his X-Men from the explosion, and his world goes on to face Galactus. (That one's interesting, but the AoA Night Thrasher and his brother get a lot of the page time!) Sometime also in '96, we get X-Man '96, where Nate returns to the AoA, but I don't think he sees any X-Men. There's a number of one-shots and such, then in 2005 for the tenth anniversary there's a 6-issue Age of Apocalypse mini-series. (The GCD says that's written by C. B. Cebulski, but it was under his pseudonym "Akira Yoshida.") Then, the AoA returns in 2011's Uncanny X-Force #11. 

Anyway, out of all of those, I'm not sure the continuity lines up smoothly anywhere.