I'm intrigued by the role of Sega in all of this.
Apparently they are not involved but they have allowed Yu to use the license (which is a nice and the fair thing to do by them, by the way).
Will we get arcades in Shenmue III with Hang-on or Space Harrier machines? Will there be Virtua Fighter posters? Or Sonic of Bonanza Bros figurines? Will they switch them to Sony ones?
(that would be weird)
On a more serious note, will Yu Suzuki be allowed to use all the assets that were supposedly made for the sequels? (there is a good chunk of unused graphics and music in the originals). Seeing how the trailer is using the main themes I guess so...