The Path of Exile website is counting down the nine days until the commencement of closed beta testing of The Awakening, an upcoming expansion for Grinding Gear's action/RPG, and those interested in testing can sign up on this page. They don't actually offer much on the add-on, deferring to various outlets who are covering the news, so thanks to MisterBenn for pointing to a write-up on Gamepedia with lots of details on the add-on and a first look trailer. He also did a nice job of highlighting these details:

• New Act 4
• 11 new skills, 9 new boss fights, 90 new unique items
• Closed Beta opening on April 20 (by application, starting small and getting extended)
• Passive tree rework
• Ability to socket new Jewels into the passive tree for special effects in nearby area
• Rework of existing content
• New quality of life additions
• Script-able loot drop filter to completely customise filter/colour/highlight/border/sound of drop levels
• Net code rewrite! New Lockstep mode available, offering a "wait for server and only show the truth" mode on top of the existing "prediction + desync" mode!