Welcome back, Izzy! That's an absolute fabulous idea.

So long as X (and everyone else) is okay with it, we could continue the story in a direction where tensions between humans and mutants continue to rise. During Spring Break they decide to help them get out of the stressful environment by whisking them off to a secret mutant island getaway, created and maintained by a group of peace loving mutants who prefer to keep their distance from humans.

Oh! It could be super cool where the island is divided into four different sections, each one eternally trapped in a particular season. The kids could surf one second and toss on their parkas to go skiing only moments later. It could also provide to be a learning experience for them.