marking for spoilers as a precaution:
1. The Red Skull or at least a version of him is back and on the attack.
2. His agents have desecrated Xavier's grave and stolen his body
3. Red Skull has removed Xavier's brain, likely intending to tap its telepathic powers despite being dead for who knows how long and cellular decay should have started, but we'll ignore that.
So here's an interesting thing that Red Skull better hope doesn't happen.......
......he had so better hope that MAGNETO doesn't learn of this, or learn of where the Red Skull is based out of.
Back in Acts of Vengeance, Magneto easily defeated the Skull and left him to rot. If magneto finds out what the Skull has done to Xavier and to other mutants, he will not only seek out vengeance for Skull's WW2 crimes but also to avenge his friend Charles Xavier.
Watch out, Herr Skull!
they did say that by the end of issue 6 there will be two more people joining the team. I think adding Magneto would be a great thing for the book. Here you would have a classic marvel villian on a team with Captain America. While Magneto has been a hero it was always up in the air for the non mutant heroes. I think this would add so much more drama that would make the dynamic of the book a great read. It would be interesting to see how Thor and Captain America work with a guy they usually fought against. Plus with the Scarlet Witch on the team he would be with his daughter. I am all for this.