According to the reliable rumor mongers over on Dakka GW has officially canceled Ard Boyz. The two main guys at GW in North America who were in charge of organizing the events are now gone and the tournament many of us loved, and a few trolls hated, is not coming back this year or ever according to GW. Good bye to Ed Spettigue who worked at GW N.A. for something like 20 years, you and Ard Boyz will be missed.
This doesn't bode well for 6th edition in my mind but GW hadn't been paying any real attention to Ard Boyz in several years. From the continuing decline of good final round prize support to the terribly written missions; I wish I could say this was a surprise.