I just caught up with that last 3 issues and I have to agree with everyone else that it is not that intriguing. Especially the suprise reveal at the end of #6... I will admit I liked the idea of Stryker being a mutant and negating/supressing the mutant gene because the gene is technologically engineered.
Then I got thinking. I don't think Xavier is alive. I think it is a new villain manipulating characters into doing his/her bidding to further their own goals. Quicksilver is the only one who can see Wanda as far as we know and following "her" orders. Rouge is doing the same with "Xavier". So maybe this will all lead to the new big bad that Spencer hinted at when this series was announced