From what I understand,
Bruce Wayne's new love interest is named Ava Kirk, who is actually an old friend from his past. Ava Kirk is the daughter of Paul Kirk, who is a super-hero called Manhunter in the comics. Deathstroke will be hired by Anarky and Harvey Dent to take down the Batman. Also, Man-Bat is indeed Dr. Kirk Langstrom in the series. Here are the stills from upcoming episodes:
Series Synopsis: Along with backup from ex-secret agent Alfred and swordstress Katana, the Dark Knight faces the twisted machinations of Gotham City’s criminal underworld led by the likes of Anarky, Professor Pyg, Mister Toad, Simon Stagg, Tobias Whale, the League Of Assassins and Magpie. The Key, Man-Bat, Killer Croc, Deathstroke, Two-Face and a Batman imposter (the Anti-Baman?) are slated to appear.
The series returns with re-runs on Toonami that begin
May 10 at 3 am EST. New episodes begin
July 27 (same Bat-time, same Bat-channel).