I think the reason this game isn't really generating a lot of hype right now is because of the roster of characters. It would make more sense to debut your game with characters that are the most requested and then gradually reveal more obscure characters. It seems like they're doing this the other way around. Which will probably get a lot of hype more close to the release of the game.
Most people want Crash, Spyro, Sir Dan, Cole, Snake, Sora, and Cloud. Until we see some of these "highlight" characters, we'll continue to have this level of hype. D: