I agree, this is something I would personaly like, but this is because I dont really like the Realms like their are, mainly because the setting seems stuck in his own. Most real fans dislike any attempt to move the setting foward, because that would mean changes to the things they like as they are. Maybe if those changes were not provoked by a huge cataclysm but only by the passage of time it would be better received, I dont know. Let Elminster, Drizzt, the Time of Trouble, the Spellplague and all that become legends from another time like we have King Arthur and Robin Hood IRL.
They can also just let the Realms be the Realms. Many people love it and I like when people have fun with D&D, no matter the setting they use.
I don't think it's that they're "stuck", more like they've disliked various changes:
A) The map change where certain parts were resized as if the Realms needed a 'tummy tuck' (the Shaar, etc., pre-4th Edition);
B) The effort to make the Realms more 'palatable' to the non-Realms gamers in 4th Edition by, basically, tearing shyyyyte up---Eartheart, the inner Sea, the Shaar, destroying Halruaa, etc. etc.
C) Part Deux--killing off a bunch of gods because, hey, all those numbers hurt people's heads.
I could go on but I won't. Dead horse beaten, across multiple threads.
Alienating one group of fans in order to *possibly* gain some others....meh.
~~Anything below applies in general to what's been said in this thread as a whole~~
In the end, the Forgotten Realms is a good choice if one needs or wants a ready-made default high fantasy setting with maps and what not. 5E FR provides enough to start playing without resulting in the complaints that come with the older material--too many products, too much information, too many uber-NPCs (since they're mostly either dead or depowered in 5E FR). You can use the bare bones and add original content--In fact it's encouraged because it's
your Realms!--or you can buy up older material to flesh it out.
Someone mentioned the FR tie-ins for most new WotC-approved adventure books as an issue. OK. Well, most adventures aren't so 'embedded' into a setting that it can't be reworked. Seriously, most adventures are comprised of locales, encounters, and specific characters or groups.
Also, the other thing about FR content in published 5E adventures: If I'm not mistaken, I thought this was a bit of a compromise for FR fans, since there weren't plans for a more complete 5E Cyclopedia of the Realms. People who just want the adventure can use it, though the FR tie-in is undeniable.