GSC Game World, the recently closed-then-reformed Ukrainian development team behind the first-class Stalker series, has announced that they won't be continuing development on Stalker 2.
All those asking about funding etc. That is not the issue. We were unable to secure the IP rights to continue with the Stalker franchise.
— Survarium (@SurvariumVG) April 25, 2012
Instead they have announced the spiritual continuation of the series in an upcoming title Survarium.
@AndyChalk "Officially" yes, but we will continue the spirit of the series in our new title Survarium
— Survarium (@SurvariumVG) April 25, 2012