Heh, funny thing is if they ever did implement TMG(I'd be for a branch off THM, main one-handed cudgels with a new offhand "timepiece" for Macc), I'd have 3 friends dropping everything to pick up the game, no questions asked. They're still holding out for it in XI. -_-
I've always been a Geomancer fan, and although XI is adding it, I feel it's too late in the game for me. Hoping XIV gets its own version at some point.
As for RDM, I could see it being a job from a base class of Fencer, and hopefully the attack animations include some badass fencing. Buddy told me if they just had it use CNJ/THM, and gave it enspells(cast enspell then use fire/aero etc to get enfire, enaero) and spikes(same thing), made its WS be more of a "magical" type of damage it could be an interesting force on the battlefield.