The "it all comes together" quote in the Direct reveal has me intrigued, that's for sure. They could be talking about game features, storylines, anything. It'll be interesting to see what they mean by that. As for character customization, I do hope they go past skin tones and hair color, I think it would be a little bit of a letdown if they didn't. But remember though, we didn't get enough game footage to prove or disprove the feature of changing clothes and hairstyle length, and IIRC the first trailer for XY didn't reveal a whole lot about that feature either.
It is definitely interesting they're not showing much, because when we had trailers that showcased a new feature we never had much of it shown in its first appearance, and only got more info later, around close to the release.