AFAIK currently only 135.
Probably Fujifilm is just a bit cautious. Looking how well the 135 is accepted. The responsible manager told me that they of course don't know really how much customers have already switched to other films and will stay there.
How big is the loyalty to the film. They have to wait and see. If the re-introduction is successful, maybe then 120 will follow.
If you want Neopan 120, then the best is shoot much of it in 135 to show there is demand, and simultaneously tell both your distributor and Fujifilm that you want this film also in 120 format.
Sort of hard to shoot 135 Neopan when one only has a 120 camera.