Both the Chinese and the one from some time ago are real. The Chinese leak mentioned powerful "tyrant/overlord" Pokemon that seem to be exactly like the new Totem Pokemon. It also mentioned that gyms would be replaced by team captains and that was right. Another leak which went along with this mentioned Bewears name and Mimikyu's before they where released and where right. They also mentioned some old Pokemon get new forms and that Yungoose becomes fat and hairy, also that there would be a bird that looks different on each island. The leaks are real guys!