While that is true, it is just a thought of continuing through that in order to get more out of the game.
What would you get out of it that you can't get simply by not doing the final quest? The only thing I can think of is Lanius' helmet and sword. And LR makes that concern moot since you get even better versions of that gear in the divide.
Immersion? But is it really any more immersive if nothing of importance changes in the game world, compared to the battle not starting until you're ready? Really?
I mean, I wouldn't mind a post-ending
expansion that had a significant amount of content. However, a DLC, as we saw with Broken Steel, simply doesn't have the budget to change much. And that's with FO3, where there was pretty much only one way to do things anyway, versus NV which has five primary endings and a whole lot of secondary location and/or quest based endings.
I agree that one of the dlcs should have extended game-play beyond the ending that would have been cool to see the effects of your decisions.
Except that "DLC" would end up having to be huge and expensive, simply because there's so many variables to keep track of in the ending. NCR/House/Legion/Yesman/Yesman anarchy, how you handled various minor factions and quests, etc. To compare, we only got to see the outcome of our actions in FO1 during FO2, simply because they were
that far reaching. And the endings in FNV outdo those in FO1 in terms of what changes. A full on expansion is pretty much the minimum you'd need to do NV's endings justice.
BS in FO3 worked because of two reasons: The ending we got was stupid ([INT]Fawkes, you just helped me deal with an irradiated area two quests ago, etc etc), and the ending we got simply doesn't change all that much unless you put the virus in. And that option was watered down most heavily.
No, that's not entirely true - bringing water to DC
should have totally changed everything, but that sort of change is outside the purview of a $10 DLC. It's too in depth to handle in so short a time.
Each of FNV's primary endings changes more than FO3's ending does, which means it's even less likely to work.
If you really want to see the results of your actions in the Mojave, petition Beth to get Obs back for FNV2.