I have a simple suggestion for Shenmue III - a camera!
It would be awesome if Ryo could pick up a camera on his travels or have the option to buy one early on in the game to capture the scenery, villages and people he meets on his Chinese adventure.
As it's 1988, there could be 2 types of camera - a poloroid camera which produces instant photos (none reversable, of course!) and a camera with film that you would have to take somewhere to get developed.
And, while they're at it, how about a photo booth where Ryo can go and pull some funny faces?
We could then get the option to share our snaps on social media or export in other ways.
I think it would be easy to implement and would be a great little feature. What do other people think?