Roulette was not back in GMT, though there was a roulette table shown off in the Indiegogo trailer. It was just the model, though, and I doubt there was any game logic hooked up with it at the time.
Just because it was/wasn’t in GMT doesn’t mean it will/won’t be in TU. I can’t seem to find it, but I believe Roulette was planned to be part of the second phase of Casino implementation.