Now i'm wondering about something. If Yu Suzuki really care about spoilers then why he decided to share all of chapters arts in 2014 on GDC? yes it was in low quality as we can see in Sergeynest's last post, but even in low quality we can see many details.
Even this way we can see many details like some of the events of Shenmue III in chapter 6, the art of chapter 10 probably showing Ren or other important character that will die and Akira/Ryo holding the character, Xiuying near Shenhua in the last chapter card and much more, and when Yu Suzuki shared all the chapters cards this way it was way before Shenmue III release.
Yu Suzuki really care about the spoilers in the chapters cards? i'm not sure, maybe for some of them like the art of chapter 10, that maybe if we see this art in high quality we will probably know who will die in this part of the story.
About the chapters in the story i remember when i saw this...
Yu Suzuki: "As you know i wrote an 11 chapter story as Shenmue's original story, this is a base of the story obviously. If i make it we'd need 11 games and that is not going to happen.
Shenmue 1 was chapter 1. Shenmue 2 around 80% came from chapter 2. The remaining 20% was sliced from chapter 4, 5 and 6, pieces of it, and in the case of chapter 3 that was actually totally removed."
Probably Shenmue III is chapter 5 and 6, and i agree with Sergeynest that probably chapter 7 will be one of the chapters in Shenmue IV.
If i had to choose chapters cards that i would like to see in Shenmue IV i would choose chapter 3, 7 and 8, and for Shenmue V chapter 9, 10 and the last chapter.
Chapter 3 was totally removed at that time, but i think Yu Suzuki can put some ideas of this chapter in Shenmue IV, Chapter 3 is the train chapter and i think it would be nice to see Ryo, Shenhua and Ren travelling by train in the game.
Chapter 7 i think it will be like Sergeynest said...
I would also like to see in this part of the story Ryo, Shenhua and Ren entering in the Chi You Men's places to try to take the phoenix mirror back, and maybe to try to get the Dragon Mirror too, this way many action scenes can happen similar to Shenmue II.
Chapter 8 it looks like is showing all the Chi You Men leaders and the true leader Tentei, and Akira/Ryo improving even more as a martial artist.
I imagine Shenmue IV this way, Shenmue IV have the potential to be a wonderful, intense and emotional game, with all the leaders of the Chi You Men, Akira/Ryo improving even more as a martial artist and as a character, lots of action and fights, revelations and much more.
Shenmue III to me was similar to the first game in many ways, i think Shenmue IV will be similar to the second game.