If you do, time to make the fairy-type Pikachu fakemons and retcon some of the Pokemon into at least being part fairy-type.
(Better wait until we get confirmation on what's it super effective against and what's it weak against, though.
).
The type chart has already been made known along with a type chart for all known type combinations.
Yes, I posted three links.

Besides, some Gen VI Pokémon are already added.
Honedge and Yveltal, for instance, are already Pokémon of
Convex and Concave, although it's
VERY short appearances. (In that they only get sent out, given an order that is never carried out, and returned to their Poké Balls.)
Also, chaos. Yet more chaos.