Warning: Contains spoilers for JoJo's Bizarre Adventure: The JOJOLands chapter 2.JoJo’s Bizarre Adventure: The JOJOLands chapter 2 has been released, and it just brought back the biggest character from part 4, Diamond is Unbreakable. Continuing from chapter 1, Jodio, Dragona, Paco, and Usagi head to Hawai’i Island to break into the villa of a Japanese man and steal a valuable diamond from him. In the lead-up to chapter 2, there was rapid speculation of who the Japanese man would be, with a common assumption being that it would be someone from JoJolion as a means of continuing the various loose threads of the series.
https://screenrant.com/jojos-bizarre-adventure-jjba-jojolands-rohan-kishibe-returns/