From what I have gathered, the Mk7 GTI is going to borrow from the Mk6 R, so perhaps motor/turbo and Haldex system to compete better with the WRX, MS3 and ST. Then the new R could borrow the RS badge and become the Golf RS (the first VW to bear the Audi RS badge) and share parts with the TT RS. In this case, I would die of happiness.
The GTI would now be priced accordingly to the competition. In Canada you can easily get a $40,000 GTI, at that point, why are you buying it and NOT the R?! So the GTI at that price, then the R to go up to $42-45,000 would make a lot more sense.