The press release mentions that Siren is currently in development for the PlayStation 4 console:
Furthermore, Sony Computer Entertainment studios around the world are working to develop more than 30 titles such as InFamous: Second Son, The Order: 1886, Siren, Hell Divers, Shadow of the Beast, and Everybody's Gone to The Rapture. Of these 20 games will be available in the first year since its launch, and 12 are not part of existing series.
The last entry in the survival-horror series, Siren Blood: Curse, released for PlayStation 3 in 2008. The property is exclusive to Sony and debuted 10 years ago this November.