Big Vega will be HBM2. The Vega release being teased probably has to do with fab for Scorpio and will not have HBM2. Little Vega was already projected, but is a bit farther off and also won't have HBM2. MS is releasing their Scorpio XB1 refresh pretty soon though, and their numbers are pretty much 4x. That's not Polaris, so it's probably a custom stripped Vega. So AMD might have some cut-down little Vega's rolling around from fab for 'RX490" or something towards the end of the year.