The unique Teen Titans within the DC Animated Film Universe. It is from the sneak peek, which I’ve seen. It looks like this film will deal with:

Nightwing/Starfire and the way they joined the Titans
Beastboy/Terra and their romance
Brother Blood/The Hive hiring Deathstroke to destroy the Titans
Blue Beetle, Raven and Damian seem to be they will be supporting characters this time round.