Birmy said:
So my question is this: does there come a time when a setting, regardless of popularity, should be put to pasture?
No. Why get rid of something that's popular? If it's still popular, it seems that a lot of people are enjoying it the way it is - in fact, they might enjoy the things others don't like about it.
If you're tired of something, move on. It's simple, and there's so many world, including many good ones, out there.
Does it ever get too big, too sprawling, too dense, too dependent on gimmicks to continue?
Maybe. But this depends not on objective indicators like "we have 250 novels for this setting now, we must put it to rest". The only way it can be put down for being too big, sprawling and so on is if it gets too big, sprawling and so forth for the fans to still enjoy it.
If that happens, they'll stop buying novels and/or supplements, And the Publisher should think about what to do. Let it go and do something new? Do a make-over? Ask the customers why they don't buy anymore? And so on.
Do settings get "played out" (so to speak)? I know complicated game worlds are part of the appeal for a lot of people, but it just seems to me that these things have a saturation point eventually.
Yes. And that point is when people stop buying.
It really makes no difference for those who don't like it: They stop playing there and buying its books, so for them the setting's "dead", anyway. But those who still like it despite (or because of) the complexity can continue to buy. So until the number of people who keep buying gets too small for the setting to be profitable, its time has not yet come.
S'mon said:
1. An open world like FR or Greyhawk can get burned out through endless expansions, revisions, metaplot etc. This is sad, and usually a result of the world being over-worked by the publisher.
It can only get burned out if too many people feel that way. FR doesn't seem to be there yet. And may never be.
Plus, many people like it for this fact. They want an intricate world where lots of things happen. For them, the setting gets better and better.
2. A 'closed' world can be constructed to tell a particular story. These worlds are usually best finished with when that story is done. Dragonlance's Krynn was designed that way, Middle Earth at end of the third age also, and the Midnight world would be 'done' once Izrador was defeated.
I'd say, Midnight would be done once Izrador destroys the world.
But it's true that many worlds are "closed": After their story has been told, it doesn't offer enough to make it an interesting place.
But I think those are less than one would mean.