Upcoming dates to remember:
Tuesday, August 19 for Percy Jackson's Greek Gods
Tuesday, October 7 for The Blood of Olympus
There's a rumor floating around that the Kanes will be in Heroes of Olympus book 5. Rick did say he was working on some more crossovers that go beyond Son of Sobek. Maybe Percy calls in a favor from Carter during the fight with Gaea?
Anywhere, here's a pic of Jason I found. Whether it's official or fan art, I don't know because I can't find it anywhere, but it's pretty accurate.
This really looks like it's from somewhere, and that Percy is next to him. If I can find it, I'll post the whole picture.