Partially based on the Court of Owls storyline that was featured in Batman comics that began with DC's New 52 relaunch, Batman vs. Robin is the continuation of the larger animated continuity/shared universe that began with the release of Justice League: War early last year. As you may be able to tell watching the trailer (which comes to us courtesy of IGN) the titular Robin in this case is Damian Wayne - Batman's son with Talia al Ghul - and he'll be going head-to-head with his father. Batman vs. Robin is the DC animated universe follow up to Justice League: Throne of Atlantis - the last in-continuity movie that Warner Bros. and DC Comics released - but but it isn't the only DC animated film that we will be seeing this year. Stepping outside of the shared universe - similar to what Batman: Assault on Arkham did last year - we will soon see the release of Justice League: Gods and Monsters. It doesn't seem that either new film has an official release date just yet, but both will be debuting within 2015.