Hell yes. While they're figuring out how to do JLA, and can't figure out what to do with Wonder Woman or maybe The Flash, and don't feel like recycling Batman or Superman again - TEEN TITANS is the PERFECT way to go.
Think about it, it's got everything WB wants, AND it could potentially very easily compete with Avengers or at the very least the X-Men series (but I see Teen Titans being bigger than X-Men):
- Already has a built in audience thanks to the cartoons of the past 10-12 years.
- Would appeal to children all over but still be smart enough and adult enough to appeal to everyone
- This is the one place where casting YOUNGER ACTORS is MUCH better and REQUIRED; forget Justice League: 90210, THIS is where you bring out the kiddie and teen actors, and IT COULD BE GREAT!
- There's "franchise"/series potential, as well as spinoff film potential.
- Perhaps most important of all and the biggest plus, BUILD UP films are NOT required to do a TEEN TITANS movie; we don't need a Robin, Beast Boy, Cyborg, and Kid Flash movie before seeing them in Titans.
- (and this one is just a plus on a personal level for me, it would rule out the possibility of Cyborg taking Martian Manhunter's place in the JLA if he's already being used in a Teen Titans film, so that's ANOTHER reason to get a Teen Titans film made before Justice League)
I honestly don't know WHY WB hasn't thought of this by now. It has all of the right ingredients, AND as I said, no solo films required to get it off of the ground. This is their series to compete with X-Men and even Avengers, it would have colorful costumes and youthful heroes, I'd suggest the animated show lineup seeing how great their chemistry is and how POPULAR they are and have Slade aka Deathstroke the Terminator be the villain, with maybe some classic/Perez era Titans thrown in (Kid Flash, Speedy, Wonder Girl, etc).
I think it'd be great and I'd watch it in a heartbeat. This would be so much better than a rushed JLA film and they would actually have a better chance of making it good and GETTING IT RIGHT this way, IMO, and the results could be just as great.