Marvel Comics' C2E2 panel had a lot of exciting announcements -- which we covered here -- but they waited until the end to show a glimpse of things to come, not unlike a post-credit scene from one of their movies:

As you can see from the shot snapped by the folks over at Newsarama , the Avengers "A" and the X-Men "X" are part of the word "axis," implying it will star both teams. Could this be a follow-up to 2012's Avengers vs. X-Men event? Or something else entirely? Curiously, the "I" wasn't stylized to represent the Inhumans. Given Marvel's huge push to make them to next big thing, it would be easy to raise the Inhuman's profile by involving them in an event with their two biggest franchises, but clearly that's not the plan here.The word "axis" can mean a partnership or alliance, so this could mean a merging of the two teams, perhaps to confront a villain too big for only one to defeat. Thanos was defeated and imprisoned in some Jurassic Park yellow amber at the end of last year's Infinity event, so he would appear to be off the table. What about Ultron? He was vanquished at the end of last year's Age of Ultron event, but with a movie of the same name coming next year, he could return with a vengeance. Magneto has been acting a little more like his former, villainous self recently, so perhaps this will be his return to villainy in a big way?Maybe instead of a typical villain, it will be SHIELD, in a vein similar to () what happened in the Captain America: The Winter Soldier movie. Making SHIELD become corrupt would align the comics with Marvel's movie/TV universe. In the comics, it has been revealed that SHIELD secretly built their own Sentinels in case mutants ever got out of hand, making them enemies with the X-Men. Maybe SHIELD will do something to tick off the Avengers too, creating a mutual enemy for the two superhero teams to fight.Your guess is as good as ours. What do you think AXIS will be? We'll find out in Fall 2014, but until then, let us know your predictions in the comments!

Joshua is IGN’s Comics Editor. If Pokemon, Game of Thrones, or Green Lantern are frequently used words in your vocabulary, you’ll want to follow him on Twitter and IGN