Yes. There's a chance Rasputin, Xorn and Omega just pop up in the Mojoverse.From Wikipedia, but it's worth noting that according to the entry on Xorn he's capable of both "teleportation (time-space wormholes" and he can also turn that black hole in his head into a sun - something that could theoretically be the springboard for a new galaxy. (He's literally a galaxy brain haha)
But the former is much more important. We have no idea what the rules of that really are and Hickman can easily retcon or twist it. Even if, say, the dead bodies we actually saw on the page ended up on X2 Krakoa, Charles could put them in the pods, revive them, and that too could've been part of Moira's plan all along. So yes, let's see what really happens with a black hole in the context of this story.
Edit: This would even correlate perfectly with the messianic/religious imagery so far. The Life 9 X-Men die valiantly and turn up on Krakoa as though it were Valhalla. They're in "heaven", about to be "saved" by a Saint Charles (Xavier). Moira or Apocalypse may even have known about Xorn's power and told them this would be their fate the whole time. I'd love to see Cardinal react to this of course.
Hey, maybe this is where X-Baby Havok comes in?