"You want Suzuki to put three games worth of content in one game?"
No, but I'd like him to actually
execute an ending instead of people begging him for years to make a continuation and "get Ryo out of the cave."

If Shenmue 3 ends neatly with Lan Di or whoever is the bad guy's death/justice/whatever in 3, great. But he shouldn't leave plot-points hanging for a 4. IMO, he should have a nice clean "cut"-breakpoint for 3 in case there is
never a 4.
To sit there with his novel-sized plot/world-builder and go "yeah, but I want to make it a game.

" when some fans have wanted a conclusion to Ryo's plot is (IMO) massively stupid. It's like taking your ball and going home when Sega didn't give him the method of doing it the way he wanted.