depends on how intel reacts to ryzen.
ryzen prices are very competitive to begin with. I doubt amd will slash prices.
but i think they will adjust the prices in other markets such as india. as of now ryzen is 40-60$ more expensive in india than US market.
even if they don't slash price, we can get the ryzen from amazon global store (if it gets listed on global store). which will end up costing a little less than official price of ryzen in india.