IMHO, WotC has just dropped the ball big time with this. Here they have the PERFECT opportunity to branch out and show case another of their campaign worlds. The original ToEE was Greyhawk...why not keep it there? This makes no sense to me...it's like they're trying to make the FR the Core/Preferred World without actually having to come out and say it. Probably for fear of alienating all the other-setting fans. Their next "adventure path" could be set in Ebberon, or Dark Sun, or any of their other campaign worlds. If this is the beginning of a trend, I predict in 2 or 3 years we'll be right back to square one, with "edition warring" being transformed into "campaign warring". *fumes-at-the-thought*
No, WotC did not drop the ball. They made a choice. One you obviously don't care for, but that doesn't make it a bad decision. For me, I don't want to see yet another redo of Elemental Evil in Greyhawk. It's been done, several times. Elemental Evil is awesome and classic and cool, and if we are to revisit it, why not introduce it into the most popular setting WotC has ever produced? Doesn't take any Elemental Evil out of your Greyhawk, it's just now infecting other worlds too! Here's an idea, after the Elemental Evil D&D books are released, read some reviews, borrow a friends copy, page through it at the FLGS . . . and consider adapting it to your favorite campaign world (or not, if it ends up not floating your boat). No gain, no loss.
I don't run Forgotten Realms either, but have owned tons of FR sourcebooks and adventures as I find them SUPER EASY to convert to my own campaign. It's not even really all that much work, just grab the crunchy bits, change a few names, drop it into your own setting and voila!
I'm not interested in the Forgotten Realms. I don't want the Forgotten Realms. I don't really like the Forgotten Realms. So...I'm certainly a LOT less likely to buy stuff 'focused' on the Forgotten Realms. I'm also pretty damn sure I'm not alone in this...especially with all the influx of "other old grognards like me" taking up the banner of 5e as the current game of choice.
No offense, but who cares? You don't like the Forgotten Realms, got it. I don't care. I don't really like Greyhawk all that much, I'm guessing you don't care about that. Not trying to say your preferences aren't legit or valid, because they totally are. But why should any of us care if you (or anyone else) doesn't like an aspect of the D&D hobby? WotC is run by gamers who DO care what they're fans think and want, but they can only produce so much stuff and it makes PERFECT sense for them to focus on what MOST fans DO want. And that, my friend, is the Forgotten Realms. Accept it, move past it, keep on gaming!
I wish more folks in our hobby would focus on what they DO love in a positive fashion, and focus less on what they DON'T love (but others do) in a negative fashion. The anger and nerdrage never ceases to amaze and irritate me, I really don't quite grok it.