Last night the creator of Adventure Time posted this awesome GIF on his Twitter. It's pretty self explanatory.
Anyways, in other tweets he announced that they'll be making the game with Wayforward the people who released Shantae and it should be out later this year. I am pretty excited about this. Adventure Time seems like it would translate into a video game quite nicely. No matter what happens it's going to be completely ridiculous and I can't wait.
You can check out the stuff he said on twitter here.