Nah, I think that's a misinterpretation by a company who chose the wrong wording. IMO, the majority of the assets required to make Shenmue III were coveted in the Kickstarter.
I don't believe that Shenmue IV will have any type of crowdfunding option. Kingdom Come's sequel was greenlit some time ago and no subsequent Kickstarter has shown up.
I believe Shenmue IV is probably a done deal, as he probably planned on developing III and IV relatively close together. Didn't I and II release pretty close to one another(i.e. a year or two at best)?
I think it'll be on PS4 with only enhancements for those who have a PS5, as a developer on ResetERA said this about next-gen only games vs support for the current gen that is ending:
" ... Most devs / pubs won't throw away a 150 million install base. It will take a year or two for that to happen to the most demanding AAA, let alone smaller scope games."
It'll be PS4. *If* he pulls off the miracle if miracles and finishes the story with FIVE games, I'd say would be next gen only.
What an ending. Dreamcast, Xbox, PS4, PS5. 4 different consoles to finish the series.
*Edit* Dreamcast was still part of the sixth console gen, I forgot. Too old now.