Check out the first trailer for Teen Titans GO! vs. Teen Titans. It has some giggles as you expect, and it introduces the story a bit. The TTG! Titans are taken into an arena to fight their 2003 counterparts, but then they must work together to fight the evil baddies.
Teen Titans GO! vs. Teen Titans didn’t get a release date but it will be available on Digital and Blu-ray sometime this year.