The Midsummer Fire Festival will run from Tuesday, June 21 to Monday, July 4 this year. While there aren't actually a lot of achievements associated with the Festival -- the meta, which awards the Flame Warden title to Alliance players and Flame Keeper title to Horde players, consists of only six achievements -- three of them require you to put in some serious travel time, and one also requires a set of dangerous trips to enemy capitals. If you're starting from scratch, this is definitely one of the more work-intensive holidays you'll have to clear for What A Long, Strange Trip It's Been.
The holiday's unlikely to have changed significantly from its 2009 and 2010 incarnations, but we do know that Lord Ahune (the holiday boss) has an updated loot table with ilevel 353 drops. As you might have guessed, coordinates for Cataclysm-era fires to honor/desecrate have almost certainly changed as well. Consequently, I've expanded our previous guides to reflect the changes we know about. I'll also be updating fire coordinates to reflect Cataclysm zone overhauls once the holiday goes live.
EDIT: This article is undergoing revision to make updates to fire coordinates. Please bear with us as we make corrections, and remember: If in doubt, fires are nearly always within a very short walk from a local flight path! And thank you to all of our readers who've written in!