Sorry I don't have any concrete news. But apparently the headliner is 'one of the most crushing bands of all time' and 'there's going to be a re-release of most of their records cos they are hard to get nowadays'.
http://foreverdoomed.com/forums/viewtopic.php?f=19&t=4785&start=90

I wonder who it could be. Also I hope they book Corrupted