Retro Camera: Looks I was correct in that Retro Camera was related to a quest.
I'm unsure whether my prediction that it'll be used as a photo-mode tool will come true, however.
Btw, why would anyone steal a bird dish!? And I'm almost expecting Ren to have stolen the ring. xD
Chobu High Tech Land - the prize exchange pamphlet is interesting as it confirms that the arcade has more than one floor. It didn't look like it from the outside, I don't think. Or perhaps this is the arcade shown briefly in the Shenmue 3 E3 trailer.
Phone Cards:
Elephant Trunk Hill - It appears that my speculation that that rock mass on the water is Elephant Trunk Hill. We've a new picture of it in the day time. That's pretty neat as the previous screenshot was at sunset. There's supposed to be a cave between the trunk and the body of the real life one, so I wonder if we'll get to explore such an area in game. There is a lot of legends and mysticism surrounding this area, so itll be nice to see exactly how it will fit into Shenmue 3.
Please read this post for more information:
https://www.shenmuedojo.com/forum/index.php?threads/magic-monaco-press-conference.959/post-22277
Shrine - Not only do we now have the name of the Shine, "Lio Jiao Shrine", we have the name of the maiden, "Ling Shiling"
Related to Elephant Trunk Hill, which rests on the conjuction between the Li River and the Peach Blossom River, I wonder if the shrine is located somewhere near the peach blossom river, which if my google-fu is correct (sometimes its not!), looks like this:
Zhang Shuqin - Assuming this picture is representative of how the flashbacks will look in Shenmue 3, it looks like both Character models and locations have been recreated in Unreal Engine 4.
Stonehead Haircuts - It looks like we may be able to customize Ryo's hair! OMG "Get your hair done there"
Also it looks like most telephone cards are pretty cheap being only 4HKD a piece but they are individual use, I don't think you have to call the person associated on the picture with most cards. Unless it's specifically stated who it's for you can likely call a number of people. Shenmue 1-2 phone cards are call specific.