Fortunately, though, modders came to the rescue for PC players, and many of the cut quests have been restored, most notably the civil war and arena. As a result, many of the storylines were underdeveloped or outright aborted. Many of these were probably cut because the game had to be released on November 11, 2011, so the developers did not have enough time to implement all of their plans.
Examples are a dynamic civil war, an arena in Windhelm, and a questline to help Mjoll the Lioness bring down the Thieves' Guild. When fans looked at the game-files with the Level Editor, it was revealed Bethesda had more expansive plans for the game than what was seen in the final product, most notably some complex quests and scripts that sadly did not make the final cut.