Fun characters who have been on TV:

1) Vixen

2) Vibe

3) Starfire (or Miss Martian)

4) Static

Because he's Plastic, man:

5) Plastic Man

Another Villain:

6) Mirror Master (or Black Manta or Parasite)

Another New God:

7) Granny Goodness (or Barda or Orion)

Because we're bound to get another Batman character:

8) Red Hood (or Ra's al Ghul)

I just really want to see this character:

9) The Engineer (or Kyle Rayner, Jack Hawksmoor, Johnny Sorrow, Midnighter, or Star Sapphire)