We had some mixed info.
Choubu been "as big" as doubita, the forest being 2km^2 (now 4km^2), and that it has three areas...
I really hope that Shenmue III will be around 10 hours at a steady speed. With room for discoveries on a second playthrough.
I don't really care about fluffing up content for the sake of hours.
My favourite game is the first one, and if you don't take in filler (wasting hours, or the forklift job) can be done in around 8 hours.
Do you have any expectations/guesses ?