Who the hell are those other guys? MetalSucks reports that it's Aegaeon vocalist Julian Kersey and Hate Eternal drummer Chason Westmoreland. Presumably, the bassist is taking the photograph. When MetalSucks reached out to a band rep, they got back that the bassist is “someone we’re all familiar with,” so start your guessing.
No word on if this is a temporary lineup or definitely the current iteration of the band. Only time will tell.
[Hat tip to Josh for the heads up]