Warner Bros. has released a 40 second snippet of a more full trailer due soon, which depicts a CGI clash between Batman and Deathstroke. It's for the prequel Batman: Arkham Origins, set years before Asylum.
It gives us a glimpse at the "young, raw, unrefined" Batman in his early vigilante career, as he faces this "defining moment" against Deathstroke. Arkham Origins features an expanded Gotham.
At the end we're given a May 20th date for the full CGI trailer being released. Batman: Arkham Origins is not being developed by Rocksteady Studios, and is due October 25th.