They've already shown the starters and main legendaries as well as the (supposed) mascot, but they haven't shown the exclusives and the gimmicks. So I'm assuming we'll get at least ninfia/sylveon's type, and likely some more screenshots, as well as perhaps a new mechanic or a bit of the storyline. Maybe some art showing some new item the characters are using. Unless that's held until later on. I'm new to this.
I don't quite think you can feel the luvdisc.