The replacement: Sean McKeever talks to Comic Book Resources about stepping into Marvel's Mystique after the cancellation of Inhumans and Sentinel:

"Initially, what attracted me to the book was that I had just gotten laid off Sentinel and Inhumans. I needed the work! Heh! But the more I thought about it, the more I realized this would be a great way to write the kinds of fast-paced, plot-based stories I've been wanting to tell for a while, where it's an action book but it's also a nice character showcase, like I tend to be known for. So I came up with what I thought was a cool science-based story, figured a way for it to be more than 'another mission' for Mystique and pitched it."