X-Play's Adam Sessler interviews Bethesda's Todd Howard. Todd discusses Bethesda's past with video game designing and such. He begins to touch back on definitive endings, including the one from Fallout 3. He strongly admits to completely messing it up and trying to fix it with the Broken Steel DLC. This could be a clue that if Obsidian Entertainment executes their ending to New Vegas the way they want, they will keep the definitive ending, and won't change it.