New game leaking, keep in mind I'm not a huge Pokémon fan, I just know this from a friend translating the games.

Pokemon A and pokemon Z
>Takes place short amount of time after XY
>plot relates to AZ and his Floet(?) making things "right"
>new mega forms, only ones I can remember are Mr Mime, Jynx and dugtrio, I know there's more but I'm not forget newer Pokemon names
>Battle Frontier is back, I think Lucy is the owner or the person who brings you, maybe both, friend wasn't 100% clear
>to use the Amiibo cards, friend said think friend safari meets the dex navi. "Special abilities and egg moves
>the announcement is coming alongside the special mega evolution anime
>gym leaders are all the same, but in a different order and different pokemon teams
>a new but old Champion, he was vague with this though
>if you link your account, your character from XY will pop up through your journey, but I didn't get the impression they would do anything special, maybe just cameos
>"another ghost girl!"
>various upgrades in the engine, so better fps I'm guessing

Thats all I can think of right now, sorry it came off sounding strange, as I said, I haven't played the games since Gold