Just to clarify for everyone. All this means is that Cosworth has won the right to be the exclusive company the FIA will deal with for a spec engine future. That means the FIA hasn't given the go ahead for the spec engine future just yet.

As i have put in the op, this could still means that the teams could be allowed to build a motor to Cosworth specs or keep the Frozen V8s (which aren't really frozen as Renault has proved)