Considering how non-integral to the line Percy’s stuff has been, I’m sure if he wanted to he could have finished his storyline earlier and left the title.
This is pretty much where I’m at (other than my excitement for Dead X-Men). When DXM and RoM end in April I might check out before the era officially. And while the departure of Ewing makes me sad, it does make it easier to make a clean break if the next status quo is lackluster.