As of February 2019, Guildmasters Guide to Ravnica was the fastest selling product in the entire 45 year history of Dungeons & Dragons. Tashasurpassed it, and eventually the 2024 Core books...bjt the Magic Settigns have been very well received by Magic fans and grown D&D.
Not at all, it is the themes and story that make ot work. That is why there is no tension running it on 4E or 5E, or in GURPS or Savage Worlds if desired. The "Everything in 3E is Here" wasn't what made it work.
Not in the slightest, that is dead earnest: TSR pumped out settings for D&D, and...
Not averse to new Settings at all: but the basis has to be theme and story, not mechanics.
The reason WotC has trouble making something really new ia that TSR or Magic both took shotgun approaches to fantasy themes, so they already own a Setting for most possible themes.
Examdria, Ravnica...
Well, that is a matter of public record, that was actually one of the rules of the Setting contest: each entry had to include everything in 3.5 explicitly. So for Eberron, it's assumptions are built around stuff like 3.5 magic item rules.
Still works in 5E fine.
Not necessarily: Netflix tried to sell the Tolkien estate on doing an MCU style approach to Lord of the Rings shows, like "Young aragorn" and "Cozy Hobbit Regency Shenanigans" that all tie together over multiple seasons of multiple shows (Dimon Tolkien preferred the ToP pitch, because it was do...
Honestly, the intense popularity of BG3 is a great argument for the approach Levy and company are taking: nobody had heard of any of those major characters 6 years ago, Larien wrote them all from scratch.