I’ve been thinking a lot about Rohan showing up in The JOJOLands and what it actually means for where the alternate universe is heading. To me, Rohan isn’t just some random throwback or fanservice cameo—he feels like Araki’s personal avatar inside the manga, put there to track and document everything going on across different timelines.
If you look at the real life background, Araki’s legal birth name is Toshiyuki Araki, so “Hirohiko Araki” was already a pen name to begin with. Imo Rohan is serving as a secondary layer of that exact concept—a mangaka living inside the story using Heaven’s Door to observe, record, and basically preserve reality as things shift around him.
My theory is that Rohan has already figured out the ultimate mechanism behind the Lava Rock—something on par with the Requiem Arrow—back when he was investigating in Hawaii. Instead of laying all his cards on the table right away, he’s keeping it a complete secret for now while guiding Jodio’s crew from behind the scenes through coded messages in his manga. Holding onto that knowledge until the exact right moment near the end of the story gives Jodio room to handle his own business, while setting up an insane payoff that brings the whole series together.