What does Gamefreak think a "Legends" game is?

I've wondered this for a couple of weeks since the first proper trailer. I adored Arecus and loved that you could explore and build up that Pokedex. So when Z-A was announced, I assumed more of the same, but this game seems to be very focused on battling (almost the opposite of Arceus). It's set in the future, not the past, and there seems to be a limited focus on catching Pokemon.

So what *is* a Legends game?

PS: This is not a complaint; I'm just curious about what Legends will be moving forward.