So now we have a few more revelations:
The Captain Krakoa story in the FCBD issue is separate from the one about the new Unity team.
Alex has left the X-Men, teaming up with Maddie (Dark Web spoilers) spoilers:end of spoilers
as part of an embassy to Limbo
There's a new character in the previews for the FCBD issue from the Captain Krakoa portion who's face is obscured...