I posted this yesterday in a different thread, but I'll post it again. I think the Chinese Leaks are real, but not because of these Starter Evolutions Designs. Rather, the No Gym Claim.
https://en.wikipedia.org/wiki/Kamehameha_I>Prophecy states that the man (child) who moves the Naha Stone would be the one to unite the islands. Many tried and failed to get the stone to move from its original spot. Those who have tried were of high-ranking "naha" blood. Kamehameha was of nīʻaupiʻo descent and Ululani believed that Kamehameha was not worthy of attempting to move the stone. A story found at the Hilo Library holds that Ululani, High Chiefess of Hilo, wife of Keawemauhili, and other High Chiefs/Chiefesses were brought together by Prince Kai o Kuanui a Kanaele of Kawaihae to prophecy over Kamehameha. Ululani then introduced her son Keawe I Kahikona of Keaau Village (the only other Chief to ever lift the Naha stone) as the younger brother to Kamehameha, so later they would not fight. In the gathering of the Ohana for Unity, Keawe I Kahi Kona chose Kamehameha I over his father Keawe Mauhili. Kamehameha ignored all negativity and moved the stone. Legend says the stone was overturned. Kamehameha went on to unite the islands through a series of battles.Having to build a League and unite the islands of Alola makes perfect sense. We would fulfill the role of Kamehameha I.
And then the guy who gives out the Strange Souvenr says "The Kalos region is nice and all, but you should really check out my region! Our Champion is really something else, I tell you…Ah, never mind. You’ll find out in due time." This could be in reference to the new protagonist, who established a Pokemon League in the Alola Region.
I'm indifferent about the designs of the Starter Evolutions, but I don't hate them. Regardless, I'm 98% sure the leak is real simply based off of this one claim. And if the leak is real, these designs may be, too, since it includes them.