Originally Posted by
Korath
In a word : Yes.
In a more elaborate explanation : The Titans (as in, the adult ones, since I find that the current Teen Titans is really great) are stuck between a rock (DC) and a hard place (the fans). Some fans want only a certain type of stories, with certain character : the Fab 5 as buddies like in a sitcom but leaving awesome adventures and dealing with terrifying threat. Some other fans want the NTT line up and wants to see DC redo what they did at that time.
And DC can't give them that because it wouldn't only not work, but would fail spectacularly, so it throws ideas after ideas and nothing stick. And why would it fail ? Because the success of the NTT, or even the Fab 5, or whatever incarnation of the team stem from its freshness, its novelty, unexpectedly strucking fold. But Dick Grayson can only become Nightwing for the first time in comics the very first time it does, and retreading it, or any other beats of the greatest eras of TT wouldn't work. The Judas contract was a great story, but you can't repeat it again and again and expect the same effects.
And unlike say, the X-Men, who have almost as much lasting power of the Avengers as a premiere team of hero right now, and were above them for a long time, who have a definitive feel (they are the persecuted minority trying to prove that their kind isn't monstrous by nature, etc.), with their own villains, often from the same species but taking radical different visions (Magneto wants what he think is best for the Mutants and it's annihilating Homo Sapiens in his mind; Apocalypse just want to rule everyone, etc.), the Titans can't have that. Their core members are either highly derivative of the JL (because they were sidekicks) or have stuggled for a long time to actually move beyond their NTT days (Raven = Trigon; BB = goofy kid with no growth; that's what spring to mind when either of them is involved, wether it is unjust or not).
And because of that, and DC's universe being a lot more static compared to Marvel's (even if I feel it's changing in the last few years -New 52, Rebirth, Reborn, Doomsday Clock, Metal, the NAoH No Justice, The Man of Steel, Electric Warriors... all are changing and expanding the DCU in bold new ways), adult heroes either join the JL, are separated by vast expanse of space and time (GL Corps, the Legion of Superheroes, mainly) or are left hanging in an awkward position when they form their own team -except if they chose to be vastly different from the JL (the Outlaws work, for instance, because they aren't like the JL at all, but still tries to do good in their own way).