There isn't a whole lot of specific info available regarding Vega atm, but we know the will release an expensive industry focused card first before they release the gaming version, probably June sometime. HBM2 offers big potential for mining but the price, hashrate and power consumption are pretty uncertain as far as I understand.
What's the prevailing opinion about how this will affect the mining game and whether its a good time to purchase new cards at the moment - would it better to wait for vega cards, either to mine with or for the price to drop on rx480/rx580?
What's the prevailing opinion about how this will affect the mining game and whether its a good time to purchase new cards at the moment - would it better to wait for vega cards, either to mine with or for the price to drop on rx480/rx580?