as the title above implies, there is a seasonal challenge for playing iron banner in this weeks' batch of seasonal challenges. This would be fine, great even, IF iron banner was playable this week. But it's not, it's coming out next week. I can already picture a portion of the community trying to tell me "just play iron banner next week", and I plan to, but that's not the point I'm making. What I am getting at is this; when a weekly batch of challenges is released, shouldn't the challenges contained within be doable in the same week that it came out? Across all my memory of this game, this has always been the case and as such, id like to know; why did this happen and is this going to keep happening?