WARNING: POTENTIAL SPOILERS. Posters will likely spoiler tag stuff, but it's still very probable something from the first two games gets through. If you haven't played 999 and VLR, you have been warned!
https://twitter.com/_crash_keys_/status/693125709015875584
My guess on who this is:
https://twitter.com/_crash_keys_/status/693125709015875584
My guess on who this is:
Junpei Tenmyouji