I think he would have to move to the west coast to ascend to god tier. as it is, he'll dominate east coast forever, but may not place 1st in anything at Evo.
i think some of the tekken players have had trouble transitioning to sfxt because of their 3d-heavy background. someone like 200yen who has a relatively strong background in both 2d and 3d has proven to do pretty well, so i don't see why ryry wouldn't be able to. did he even enter the trounament or is he even playing the game? it could just be disinterest.