Today Wizards of the Coast announced the name as well as several other release details of the second set in the Shadows over Innistrad set — Eldritch Moon! It will be released on July 22, 2016 with pre-release events on July 16–17, 2016 and Game Day on August 13–14, 2016.
The rest of the details can be found on the official Wizards of the Coast site. Click here to view it.