The same email address was used to register theorderps4.com, so I guess it is a next-gen title.
Worth noting that SCEA uses Network Solutions to register domains for North American titles, but SCEE uses Netnames for register domains for European developed titles. So I'm skeptical that this is GG's new IP; I vaguely know about their second game, and an 1886 wouldn't match what I've vaguely heard.
My guess is that this is Ready at Dawn or Santa Monica's next game.