I just watched a video by TheSupremeRk9s on Youtube... Apparently the dataminers have been hard at work since the pre-download copies of Ultra Sun and Ultra Moon were released, and here is what this means for shiny hunters if the data is accurate...
Shiny-Locked/Unhuntable
Cosmog
Cosmoem
Solgaleo
Lunala
Necrozma
Tapu Koko
Tapu Fini
Tapu Bulu
Tapu Lele
Zygarde (sigh...)
Totem pokemon
Ash-hat pikachu
Ultra wormhole legendaries CAN be hunted shiny. And the best news...
Ultra beasts CAN be hunted shiny.
Let's hope this is all accurate information... I really want a shiny xurkitree.
See the video here:
https://www.youtube.com/watch?v=IHO0qoHpq5g
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Shiny growlithe after 123 eggs. Male, timid, somewhat vain, with Intimidate. 4IVs, xx/xx/31/31/31/31. HP is "very good", so it's still decently high.
What is with my shiny luck lately?
Going to go for bounsweet next. Just gotta go grab one in not-an-ugly-ball.