Board Thread:Online Discussion/@comment-77.98.203.197-20130414100541/@comment-37.123.142.82-20130416144252

There are some areas that are mentioned as unavalable at release, such a the island Vvardenfell in Morrowind and most of Elsweyr (backed up by a lore cause, such as the latter being plagued by some disease). As for exploration in enemy faction territory, I don't think the developers have mentioned anything about it. They have, however, said that you'll be able to create a character in each faction and experience the game from each factions perspective. That might include exploration of provinces.