Fox has blown the franchise. A break might be a good thing. I've seen the trailer for Dark Phoenix and it looks like a rehash of an earlier film, just different actors. There is no reason for me to see it in the theater.
Marvel Studios needs to handle their property, they know it best. Disney has enough property to keep it going without needing to capitalize now on the XMen. Here is where the house of mouse shines, they know what to reboot and when.
Disney is making a killing rebooting their animated stuff into live action. Their focus will be elsewhere for the time being, until they know they can make a killing at the box office.
I think its smart to rest the Xmen. When they reboot, stop with the time period stuff. Put them in the here and now and work with it. IMO