Bethesda took advantage of the conference he held, during E3 2017, to teaser the next two extensions of The Elder Scrolls Online: Tamriel Unlimited.
The first extension announced is Horns of the Reach. It will be released later in the year and will bring two new dungeons: Falkreath Hold and Bloodroot Forge. New objects, characters and places are obviously to be expected. At the same time will come a free update that will add a new map and new ruleset for PvP battlegrounds, as well as new furnituring, homes and items. The content will be available to all players, excluding battleground mode and new map changes.
The second extension announced is Clockwork City, promises 10 hours of play at least and invites the player to discover the Sotha Sil’s Clockwork City. No official date has been released yet, except that it will be released later in 2017 and after Horns of the Reach.