Quote Originally Posted by fulminating View Post
Plenty of alexandrians died (again), alexandria is still on the source. They will have ended up in the main lifestream along with quite a few unsundered that were in zodiark. The time bubble will probably stop anything coming of it though.

If it’s purely physical contact then why did nothing happen in 3.4? He was already without his real body and there was a whole instanced duty where the wol punched him until alisae charged up the interactable text.
Ardbert might have been without his "real" body in Heavensward but he still seemed to be in a different state to what he is in Shadowbringers where he has become an intangible ghost only we can see.

So far as we can tell, the Warriors of Darkness are physical beings at the time they are in Eorzea -- having been brought over by Ascian methods, it's likely they have taken over other bodies as the Ascians do (and because that was the only possibility the writers had introduced at that point) or elsewise they may have spontaneously formed aetherial bodies like the Scions do in the First. Whatever the exact case, we know that everyone can see them and physically fight them. Those bodies would have been lost when they returned across the rift.

As for Alexandrian souls getting joined up with their shards in the Lifestream... if they do chance to come together, so what? That soul gets a little denser than a standard Source one but otherwise continues to function no differently to any other soul. We already have both the WoL and G'raha as examples of what happens when someone gets more soul density than is usual for their world, and the answer is basically nothing.