I hope you are correct. 330hp would be more appropriate, esp. if the GTI Clubsport will have close to what the current R has.
There was something on Instagram or YouTube that showed a page in the MK8 GTI Manual that indicated the Golf R would be more like 330hp. Can't imagine they would de-tune the engine after the printing of the manual. But it is also a known fact that VW low-balls their performance numbers from the factory.