We have gotten a lot of info and sneak peeks, not just from CN, but a lot of times from the Crewniverse. A lot of them keep a very active presence on social media, and sometimes give hints when they're recording as to what could be coming next for the show or which characters could show up. Tumblr user bismuth has compiled a lot of the info we know so far, and put together a fantastic analysis about what could be coming next month. Below the break, and beware of spoilers!
Twitter: Emerald
