Yes it is the 6th Generation.
Any main series game with new Pokemon means it's called a new Generation. I don't know if Nintendo ever officially refer to the groups as generations, it's mainly a fan-made term.
Yes. According to the fan art of the new starters, yes. Generation 6 is coming.
How to change your username
How to add a user avatar
Why was my post hidden?
Flags vs Downvotes
Official PokemonDb League
Type a Pokemon name, type, move or ability to see instant results.