CommonNinja on 26 June 2014
Its because they just unloaded almost all thier 1st party studios in an all out assault in 2013.
-GoW Assencion (Santa Monica)
-The Last of Us (Naughty Gods)
-Tearaway (Media Molicule)
-Killzone Mercenary (Gurila Cambridge)
-Killzone Shadowfall (Gurila Games)
-The Pupatear (Studio Japan)
-Knack (Studio Japan)
-Beyond Two Souls (Quantic Dream 2nd party)
-Rachet & clank into the nexus (Insomniac 2rd party)
-Grand Turismo 6 (Polyphony)
So right now most of thier studios are busy working on thier next games, but these games take time to make. Most games run on 2-3 year development cycles, and some even take four years like in Naughty Dog's case. So you just need to be patient for now. 2015 will be a good year, and 2016 will be even better.
