Game of Thrones Jon Snow sequel

Even before the prequel comes out, there's a Jon Snow sequel in the works. Kit Harrington is supposedly set to return in the role:

I can't imagine they would want to set the entire plot beyond the Wall (that would deprive them of cast cameos when he inevitably visits Winterfell again), but what would you want to see in a project like this? (And do you even want this, given it all ended so phenomenally poorly?)