There's also loads of sponsorships like for instance Timex and other third party developers who helped with the development on the game such as Nex Entertainment (formerly Nextech Corporation) and Quintet (yes, they helped develop Shenmue! Just noticed them in the credits this time when I beat Shenmue 1 for the umpteenth time).
Just loads and loads of legalities to sort out. That's no doubt what Gio Corsi was inferring to that guy on NeoGAF about there being "loads of issues" to be sorted out.