One thing is for sure; it won't be called 'Captain Worf' unless they are planning a spoof. Despite Dorn saying it isn't just a pip dream, I somehow doubt that anything will come of it - at least on television. Tim Russ and other Star Trek actors have made a Star Trek web series, which isn't out of the realms of possibility, but I think the moment Abrams brought out NuTrek, any chance of something happening in the Prime universe went down the plughole.
If it were to be a movie, then I'd be all for seeing TNG cast on screen again, but for television, if they were going to do a new series, I think it should be a new crew/cast, and not try to revive a past series.
If, on the other hand, Dorn was planning 'Star Trek: Klingon'...