There are far more Kingdom Hearts III openings being advertised (whereas on the latter, they may only be looking for a few individuals to round out the team). Nevertheless, that Square Enix is recruiting for both games probably means that they're ready to develop at full speed.
Meanwhile, Kitase's department is recruiting for a mobile game that runs on the Unity engine. The game title isn't stated, so this may or may not be for Mobius: Final Fantasy.