ayylien waifu is 10/10
The first images from CoroCoro have leaked and have revealed the latest news on Sun & Moon. The name of the Pokémon Rockruff evolves into is Lugarugan and has a different appearance based on if it evolves during daytime or nighttime. Rockruff becomes the Midday Form when bathed in the rays of the sun and when full of the night's power, it becomes the Midnight Form. No types or further details have been given. There are also two Ultra Beasts called UB02, UB02 Beauty and UB02 Expansion. In the scan, it shows UB02 Expansion appearing in Pokémon Sun, facing off against Tapu Koko and UB02 Beauty facing off against Tapu Koko in Pokémon Moon. It also states that UB01's name is a mystery but may have a deep meaning. It also reveals that it will show the true strength of the new Pokémon, Type: Null, during its next issue.
The reason why there are two UB02 is because they're version exclusives. UB02 Expansion to Sun and UB02 Beauty to Moon.