So I was browsing NeoGAF, and they found something interesting there!
Apprently, TPC / Gamefreak / Nintendo did something stupid, and put some unused types hidden in the URL of the Japanese Pokemon Sun and Moon page recently, hinting that we might be getting a new Pokemon reveal soon (maybe related to that video corocoro is uploading tomorrow? that'd be a riot lol)
Ground-type
Fighting-type
Worth noting that the Ground-type image is icon 3, right before Fire, while Fighting is icon 6, right after Water. Some people are speculating that these are the dual typings for Litten and Popplio, but I'm pretty skeptical of this claim, since I highly doubt we'd get a starter evo reveal so soon. I imagine that we'll just get a random new Pokemon reveal in the near future or something along those lines.
Apprently, TPC / Gamefreak / Nintendo did something stupid, and put some unused types hidden in the URL of the Japanese Pokemon Sun and Moon page recently, hinting that we might be getting a new Pokemon reveal soon (maybe related to that video corocoro is uploading tomorrow? that'd be a riot lol)

Ground-type

Fighting-type
Worth noting that the Ground-type image is icon 3, right before Fire, while Fighting is icon 6, right after Water. Some people are speculating that these are the dual typings for Litten and Popplio, but I'm pretty skeptical of this claim, since I highly doubt we'd get a starter evo reveal so soon. I imagine that we'll just get a random new Pokemon reveal in the near future or something along those lines.