I agree, it is possible, but
highly improbable. FO3 only had it because there were two variables to deal with: Killing Lyon and saving yourself, or killing yourself and saving Lyon. Where as FNV has hundreds, if not thousands of variables that impact the end game, for example: Which sherrif you choose for Prim, whether or not you destroy the Mojave BoS, Picking a side during the Gommorah quests, Picking a side during the Goodsprings quests, Helping the Powder Gangers with everything they have going on (including the group that seperated after the jail break), who's side you chose (as well as how you decided to do their quests, as well as some other random variables like helping the misfits or completing the Black Mountain Quest; Crazy, Crazy, Crazy. Just to name a few.
The reason why there wont be one, is not because the game has a definitive ending no matter what you do, but because it has so
many different endings. It's fairly hard to take every variable, no matter what it effects, or what you choose, and make them all converge into one point to continue on. They'd need hundreds, if not thousands of sub stories to explain why things are the way they are and how your choices affected places.
Now I know a lot of you don't care about all the mumbo jumbo I just typed, and dont care if it just lets you play even without having everything make sense, so I'll say it in lamens terms;
The game has a definitive ending, no matter what you do. There is no justification or reason for the game to continue after such an ending.I really should save this so I can copy and paste it next time. :rofl: