Here are some leaks
I have seen a japanese trailer set to drop on friday/sunday

First unveiling of the dusk form then
Lycanroc has an other form form: Lugarugan yoake(Dawn)
Pale pink with yellow eyes that turn blue
(Pic related)
Only a special rockruff can evolve into these form, the evo will depend on the game : dusk for moon and dawn for sun

Lycanroc gets a Z move, rock type it changes with the form

Midday form is it drilling down on the opponent, Midnight kind makes think of 3rd gen animation feint with reddish back ground and midnight attacking from behind

The dusk move has a sunset in a canyon in the back ground and dawn has a sun rise in some kind of forest
Those two does not seem to be physical or damaging Zmove

The rockruff will be distributed with the LycanrocZ crystal starting November 17

Quick snapshot of ash pikachu

There are many things to say but I wanted to be the one who broke this one