So how are these two going to fit into the story?

>>28473308
They will likely be summoned to aid you in your fight against the main antagonists (Ultra Beasts, the Aether Foundation, or MAYBE Team Skull). The scene at the end of the recent Japanese trailer with Solgaleo and Lunala going into a wormhole along with the Poké Ride feature has led some to speculate that they will take you to the Ultra Beast dimension for the story's climax.

They're probably going to save everyone from Ultra Beasts. You'll have to catch one and try to fight beasties.

Who the fuck knows

You ride them into the Ultra Beasts own turf and kick the shit out of all of them along with Gladion

>>28473308
Solgaleo is a giant Liger Zero rip-off and Lunala is a death ray soo bsttle against the invaders. Idk, especially since it's implied they could have a pre-evo.

>>28473308
Guzma will capture them while you tight Ultra Beasts.

Guzma is the final boss

>>28473366
Well, we did get to ride Groudon and Kyogre.