if he's talking about making VR affordable at 970/390 performance i doubt its at the same price as 970/390's.
For Polaris to be successful it needs to match or beat 390X performance but at a sub £250 price bracket. No one would pay £300+ for a 390X replacement for the same price as the current 390X?
AMD must be pretty confident to have Polaris event on roughly the launch date of the new 1080/1070 cards.