I'm selling my GTX 960 and waiting for the 570 or 580 myself since I have a FreeSync monitor. Doesn't look like Vega will trickle into the midrange anytime soon.
AMD GPU Linux driver patches lists seven Vega 10 IDs
There are seven Vega 10 SKUs. At the same time, seven Polaris 12 IDs were also included, but there is still no trace of Vega 11.