Ka-Boom! is developing a mini Steven Universe comic series to be released in February.
Here's the summery:
"Based on the popular Cartoon Network series, and following the critically acclaimed run of the first Steven Universe comic series, February will see the debut of an all-new four-issue-mini-series written by Josceline Fenton (Hemlock) and Chrystin Garland (Adveture Time), Fenton and Garland take us back to Beach City, where we find Steven involved in new adventures --- which involve taking the Gems camping and telling scary stories. When the Gems decide to share some tall tales of their own (all in good fun, of course) they quickly find their stories of people turning to glass coming to life right before their eyes."
Maybe they will start to include other characters. I have volume 1 and it is mostly one shot adventures with no continuity connections, but then they did include Lion so maybe others will show up in the stories.