Surprising clickbaity clickbait from CBR. But, as for the options of Magneto's Brotherhood:
Exodus
Elixir
Daken
They all seem to be confirmed. I know Daken hasn't been "confirmed" confirmed but Bunn was saying that he planned on having him be on his initial Uncanny roster but ended up settling for Sabretooth. So this seems to be him putting his original plans to fruition. Plus, I think the Sleepers will play a part in this. Per Bunn's words, they are supposed to be making a play in Blue, eventually. And with Xorn and Archangel out of the picture, Erik could easily take up the reins to lead the group.
You think Mags would pick Havok and Emma after what went down during Mothervine?