Gail Simone & Dave Marquez would be a perfect team for any X-title really. We can assume the Brevoort line is going to have around a dozen books at least so I would expect multiple flavours and teams to be spotlighted.
As a fan of Gail's work on Birds of Prey, Wonder Woman, Secret Six and Welcome to Tranquility (just to name a few), I'm very excited at the prospect of having her on an X-book. And Marquez's art is literally the highlight of any books he works on plus his style is perfectly suited for the X-Men. Win-win.