Guild Wars 2 lead designer Eric Flannum has left ArenaNet to join Amazon Game Studios. He's working on a PC game which will utilize "the latest technology to explore third person, competitive, melee-oriented action gameplay in an entirely new light". That's presumably the same project Amazon was hiring for back in June.
That quote above comes from a LinkedIn post by Flannum, where he's listed as a creative director at Amazon Game Studios. He lists a handful of employment opportunities at the studio and claims the current team has talent from "projects like Guild Wars, Forza, Halo, Starcraft, Half Life 2, Left for Dead, Dota, Infamous, Sunset Overdrive, Destiny, and Shadow of Mordor."
