Castings have been super interesting so far. They've got a 13 year old playing Raven and Anna Diop, who's, uh, black, playing Starfire. I'm not saying I have any problems making these kinds of changes to the characters, but, I know there are some people who will get upset with any kind changes at all from comic book origins.
It's hard to tell what the main team is going to be. I'm guessing since it's just called 'Titans', they're going to lean away from emphasizing that they are all teens. Their cast, as of right now, includes a Robin, Raven, Starfire, Beast Boy, Hawk and Dove, a police officer character named Amy Rohrbach who, I think, is supposed to be tied to Dick Grayson, and other Doom Patrol members.
It should be interesting, but, I'm nervous that it'll come out too similar to the other DC shows. I've been digging Legion atm. It would be nice if they felt the freedom to do weird/out of the box type things like in that show.