Sorry to bump an old thread, but I cannot make a new one because I'm a junior.
Sony Romania made a press release today regarding the launch of the PS4 in my country. Among those details they mention that a new Siren game is in development: http://ro.playstation.com/news-and-f...ero/index.html
Here is the translated text that mentions it:
Sony Computer Entertainment studios from all around the world are developing over 30 titles and among them are games like InFamous™: Second Son, The Order: 1886, Siren, Hell Divers, Shadow of the Beast and Everybody’s Gone to The Rapture.