Well I hope they have something new and exciting to share! We haven't really seen anything new in terms of gameplay in my opinion. There's a new Lycanroc form, a new exclusive Z-Move, a photo thing and a new map. I mean....eh? Nothing is grabbing my attention yet. I'm worried that the story and the way we progress through the game won't be much different.
At this current time I think I will be waiting to purchase it though, see what the reviews say and if the game is really different or not. If not...meh, might pass on it.