Patch 5.4's Siege of Orgrimmar is available for testing on the PTR raid finder for the weekend of July 19 - 22. If you're looking for something to do this weekend, why not head over to the PTR and check it out? The first part of Siege of Orgrimmar involves the first four bosses. This is another big indicator of how close we're getting to a patch 5.4 drop on live servers. Perhaps another month and a half or two?
Vale of Eternal Sorrows (Part 1)