There is supposed to be an announcement at 8AM EST on 30 July according to Irrational’s Ken Levine.
Clash of the Clouds is out now and includes four new challenge maps.
Burial at Sea is the second DLC which will see a return to Rapture. It’s a two-part add-on campaign featuring an all-new story for Booker and Elizabeth set in the underwater city of Rapture before its fall. No date has been set for that yet but it will cost £9.99