UPDATE - Pokemon-Sun.com and Pokemon-Moon.com have also been picked up by Nintendo, as well as some foreign language domains.
Nintendo also has pokemonsolluna.es now as of today. We'll see if they're real or not tomorrow, maybe. pic.twitter.com/jDwcjtd4fW— Kristen (@CuddleofDeath) February 25, 2016
If you wanted more evidence that Pokemon Sun/Moon is the real deal, we have another piece of info for you. Nintendo has been listed as the registrant for the domain for Pokemon-SunMoon.com. Right now, the domain just redirects to the regular Pokemon.com. I guess we'll find out more tomorrow!