I'm starting to reassess the idea of Locke being in the game and I'm thinking it might be Celes or even Cyan for surprise sake. My reasoning being that every new scene with Terra and Vaan it just seems obviously that its a parallel to Terra and Locke's time together in VI so I kinda feel he's fulfilling the role he would have had in the game. I don't think he can be counted out yet obviously but I now feel Celes or perhaps an unknown may have a higher chance of getting in.

As for Leo, while he would be great for story purposes, he's a relative unknown in VI's cast. He had a higher chance of being put in the game when we all first thought it would be a hero and a villain but now that it's down to one per game possibly (I'm still waiting for Seymour...) then I felt his chances were shot to all hell. Besides, both Celes and Cyan have equally good standing for being heroes against Kefka.

As for the Phantom Train, after finally seeing the stage in the cutscenes, I feel its a good possibility unless it's just an atypical train for the game. It's interior does look very similar to the Phantom Trains making me wonder if the Phantom Forest slash/Train will be VI's new stage. I personally would have done Narshe but that's me...