Mike tells us about this possible glimpse at the next batch of Clone Wars:

If you go to the Comic-Con picture viewer on the official site, image #65 shows someone holding two pictures and there's another on a table. The drawings look like they were possible concept art for the new Clone Wars episodes for next year. One shows Anakin with noticeably longer hair than Seasons 1 and 2, another shows Aayla Secura, and then the one on the table shows Adi Gallia, Aayla, and Barriss Offee with clones in the background. I'm assuming this is Clone Wars stuff but I could be wrong.

It may be for that online comic, too.