HBM2 just seems far too expensive for the midrange market without huge losses on every card so I'm not sure if there are many other options available to AMD except hunker down and wait for Navi. GDDR5 may help keep prices down and AMD should still be competitive at their price points.
Whatever the outcome within reason, bandwidth is not going to be such a dealbreaker for cards aimed at lower resolutions than 4K.
I was expecting an EA official remake from that title. A mod is nice, but nowhere near what I was expecting.
I think that's the 14nm+ Vega in the roadmap slide from AMD. Probably will be higher clocks, and hopefully some power draw improvements as well.