I'm hoping we're just seeing some kind of search for a MacGuffin left behind by Ben.
We had decent reasons to visit it before: Han's unfinished business with Jabba in Jedi and his need for rescue, and though it shouldn't have been his home planet, Anakin's unfinished business with his mother.
Hopefully there's just a continuation there, and I think a race for something Ben left behind is a great idea if we absolutely must go back.