I've been wondering, after the mess with the spellplague (which my groups treats as non-existent) what would you like to see done for the Realms?
I find it interesting that "Keep the Spellplague and FR as it is" doesn't make it into the options list. Not that I would ever support the notion that others can't play the way they like in the setting they like (which does appear as an option with the wipe of the Spellplague).
I do what I like with the FR. In my home campaign I blended it with Ravenloft for example. I do that whenever I use a campaign world. It is merely bones. I always flesh it out my way to suit the game I want to run.
I'm not sure if I am a lone voice in the wilderness, but I don't consider that there was any "mess" with the spellplague. I found the spellplague a wonderful inspiration for my campaign. I found the FR Campaign guide (4e) a rich source of story lines and plot hooks.
I'm not even sure what is supposedly to be missed about the pre-spellplague area.
Perhaps I didn't know it in enough depth. However, I honestly can't recall anything particularly interesting about the earlier FRealm's. I don't mean that as a slight to anyone who does recall and can define what they liked so much about pre-4e FR. All I mean is that I personally would be unable to define what made it more special than 4e FR.
To me FR was Drizzt and Gwuenhyvar, the Underdark, mindflayers and snirfeblin with a dash of Utgard Barbarian. It was Baldur's Gate and a bald man and his weasle Boo. It was Waterdeep and the Undermountain. Cormyr, the dragonwall and the horse nomads.
With 4e did I lose any of that? Well ... not really. I didn't feel the need or desire to include Drizzt in my campaign. The Underdark was there, only closer then ever with a massive collapse exposing large parts of it to the surface. WHich covers mindflayers and snirfeblin as far as I was concerned.
As much as I like Minsc and Boo, Baldur's Gate was cool because it was a cool video game. I didn't force it into my campaign. But it was there ... sure ... with more refugees but there.
Waterdeep ... undermountain ... still there ... Cormyr, Tuigans ... all there ...
And add the fact that a whole chunk of the actual lost Realm has returned and collided with the world! Wicked! Now the Forgotten Realm is actually relevant!
Primordials gathering forces to over throw the gods ... insane churches who go on pilgrimages to spellplagued areas and receive spiritual guidance fromt eh Sharn! Sweet! The Society of Aboleths from the Far Realm doing who knows what for who knows why! Netheril making economic inroads into Cormyr, slowly gathering strength with their floating cities ... Cyric imprisoned by the gods for murdering Mystra .... His church infiltrating the Zhents ...
From where I stand (and I'm only mention stuff I can literally recall from the very top of my head), that is a whole lot of cool flavour to use as inspiration for any campaign.
I know everyone has different opinions. I just think it should be said that some people (or at least me) liked the destruction of the Realms. But I don't hold it against those that don't/didn't.
That said, if 5e goes back to reset I can't see myself being interested in using it as a base setting. I'll stick with what I've got.