Blizzard's pre-order page for WoW's Warlords of Draenor expansion tucked away a release detail for the expansion. It assures that it will release by December 20, narrowing it very slightly.

WoW Insider notes that the page on Battlenet promises it "on or before December 20, 2014." That's awfully specific, especially given that the release window used to be a much more broad 2014. It also solidly puts it within their fall target.

Given that pre-orders have already begun, however, it seems likely the expansion will hit sooner than that. This date gives us a deadline that Blizzard has apparently self-imposed, but it's doubtful the studio plans to wait that long if they can help it.