Well in thread 2 I decided that to see how popular this idea truly is to add a poll, because of the heated debate in thread 1 of what the majority wants and dos not want, lets see what the people truly say.
I don't think post-ending gameplay or not is so important, actually. Personally, whether the game ends or not, I save the final battle for last. That's why it's called the final battle. So yes, The Courier of New Vegas has walked off into the sunset forever and that's that; I can't play him anymore, while the Champion of Cyrodiil is still dikeing around in the Imperial City and I can play him anytime I like. But do I? No wtf there's nothing left to do.
But what I like about Fallout's endings? They have them. Stories come to an end, civilization advances, there IS a canon ending. What the Chosen One did in Fallout 2 has an effect on the setting the Courier finds himself in. Whatever the Courier did will effect the setting of the next protagonist: the story actually moves FORWARD. But Elder Scrolls? We have no clue what happened to the Nerevarine, and it made absolutely zero difference for the Champion of Cyrodiil. We dunno what decisions the Nerevarine made or what became of Morrowind. I fear it will be the same here; we'll know some, since apparently the Imperial Legion is collapsing, but the setting is hundreds of years later, so we won't know what happened beyond very basic details that are essential for us to know.
I like how when I play FO:NV, I found out the Chosen One was a crazy bastard that plowed the daughter of a mafia boss, and accidently stumbled into a kitchen with a deathclaw mother and ended up killing it. It's just funny to hear the little details of the canon Chosen One. I also like how the story is dynamic. The Brotherhood of Steel is powerful one minute, the next they're on the brink of destruction. The Elder Scrolls by comparison seems so phobic of making any concrete decisions at all out of fear of breaking the roleplay experience, when in my opinion, it'll just get old if they do that. We'll eventually get bored of this static, never-changing world...
I feel like, in The Elder Scroll's desire to provide us with post-ending gameplay, they end up sacrificing the ability to provide us with any major changes or consequences. We don't see Hlaalu, Redoran and Televanii react to the defeat of Dagoth Ur because that's too much work to program, so instead their reaction is to carry on with their usual business. We don't see any actions taken by Chancellor Ocato or the Counts because that'd be too much to program, so instead everyone just says "oh well, no emperor, who cares" and carries on with their business for another couple decades. A wonderful example of this is Broken Steel. The ending slides for Fallout 3 imply that you either allow civilization to rebuild OR you literally exterminate all life in the communities there; pretty dramatic. Once you get Broken Steel though, you see....well very minor differences. Either people like the "purified" water or they don't.
It just feels like they're cheaping a REAL ending all for the sake of post-end gameplay, a feature which, while I'd initially say "of course I want that," I never find myself actually using. The alternative is to end the game then and there, and then they're free to write whatever dramatic ending they so please. And honestly, I think I might prefer that.