Seriously!
I need to go back and listen to it again to confirm - might also have been mistranslated, but the translator is killing it so I doubt it - but watching the livestream, Majima's VA Hidenari Ugaku said that he first heard about it at the Infinite Wealth after-party.
This game will have been made in a year and change by the time it launches, which shouldn't be a surprise considering Gaiden only took 6 months or so, but it kind of is?
Japanese devs just like to play it smart with assets, too, which I know has come up before, but it's just so smart. They invest a good amount of time in making a massive map they can mix up and evolve rather than starting from scratch, meaning that smaller games can be made in a super fast time. From and RGG both reuse a lot but they always work it in so naturally as well, and so such a good job of making a familiar location feels fresh and exciting to revisit, basically taking their learnings from Kamurocho and applying it to every map they make.
Seriously, they're some of the best in the biz still got to Infinite Wealth before the end of the year but this has got me even more excited to explore Hawaii for the first time!