The Elder Scrolls VI: Every Rumour & Confirmed Detail So Far
7. Subtitle "Redfall" May Inform The Story
In 2018 it was discovered that Bethesda had trademarked "Redfall".
Bringing to mind both Hammerfell and the native Redguard, as well as the Daggerfall Covenant that High Rock is a part of, the name seems too much like an Elder Scrolls' name not to the subtitle of The Elder Scrolls VI. If this is the title of the game, then it seemingly confirms that we'll be visiting High Rock or Hammerfell, if not both.
Some have taken that name a little further though. There was a quest in Skyrim where worshippers of the Daedric Prince Peryite were afflicted with his pestilence (a plague that left them vomiting poison and with red boils all over their flesh) and tasked with spreading it all across the world.
As that plague is supposed to have started in High Rock, followers of that train of thought believe that it will be the backstory behind The Elder Scrolls VI: Redfall.
Presumably, the prisoner we traditionally start off as will have to escape the afflicted areas, before joining refugees swarming to Hammerfell. Unprepared for harsh desert life, these refugees would turn to the main character to help them settle, as well as traveling back to cure the plague.