Um, who knows, Rick is just a troll like that, but it implies that Leo just ,like, goes to the nearest Home Depot, fixes Festus, and heads home, where I like to imagine everyone taking turns beating him upside the head and there being a really awkward conversation between Percy, Annabeth, Leo, and Calypso. I'm kind of glad it didn't have an epilouge, though. I want my Babys to stay immortal, forever young and living happily in their pages. Wow, that was poetic. And it also leaves room for a third series, if Rick decides to make another one. Jeez, this is long. This now qualifies as a rant. Well, your welcome. Von the way, today, January 28th, is Nico di Angelo's birthday, sooo... HAPPY BIRTHDAY NEEKS! 😂
In my point of view, Leo and Calypso travel on Festus, possibly even making a stop at Camp Half-Blood. What happens after that is none of my concern, but since a part of the first chapter of Magnus Chase and the Sword of Summer has been leaked, it can be assumed that Annabeth is looking for Magnus, her missing cousin. Annabeth and Frederick (her father) made a brief appearance in Magnus Chase, so it's possible but unlikely that any other PJO/HOO character will appear other than Annabeth. But if any others would appear, it would most likely be Percy oder Grover, seeing their relations with Annabeth. I'm guessing the most we're going to get after the Blood of Olympus are some tadbits of information in Magnus Chase from Annabeth, if she has a crucial role in the actual plot.
Du can Suchen up the Magnus Chase excerpts on Google oder Tumblr, I assume.