From history of Sun/Moon, it went like this:
1. Trademarks showing the logos and tm info came about
2. Domains Registered
3. Reveal next day.
What we have currently:
1. only 1 logo revealed, no trademark.
2. Domains registered.
3. Still nothing.
If this was nintendo, i'm pretty sure they would trademark is ASAP if leaks came about before some other crackhead TM'd it somehow.
One thing that's mind fucking me rn is the fact that
pokemon-sunmoon.com was registered for 2 years in 2016, then re-curred for another 2 years in 2018 (now expiring in 2020, total of 4 years lifetime of that domain so far).
Strangely same thing with the new domains. 2 years registration.
CSC is a brand specifically made to register domains and hide registration info, why they dont just use Whois Protection is beyond me (probs legal reasons or something).
So im honestly 50/50 on if this is real or not.