Sony have unveiled their first new PS4 title at their conference tonight with the previously leaked title The Order 1886. It is being developed by Santa Monica and ReadyAtDawn. The game is set in an alternated version of London, which has a very steampunk vibe with airships and monorails as well as walkie talkies.
The trailer showed a group travelling through London by stagecoach before they were attacked by something. There are definitely monsters involved. We think they could have been werewolves. The protagonist appears to be called Gallahad, and I think I heard the name Lafayette too.
Overall it looked incredible, though a release date was not announced.