Plus most or all of the refinements of the Fuji X100T and X-T1. Several weeks ago, I shot an X-Pro1 body again after using the X100S/T and Fuji X-T1 for the last several years. While using the X-Pro1, it felt outdated but not in a bad way--just the realization that Fujiflim has come a long way since 2011. I imagine the X-Pro2 will be stellar so I'm not worried about functionality and performance.
The big question for me is the sensor performance.