There was an entire line for FR under 3e and 3.5, some rather generic (such as Dragons and Magic of Faerun...etc). Of course there were those under 4e (FR books, Neverwinter book, the Living campaigns set in FR, etc), and 5e (also some living campaigns such as murder in Baldurs gate during the Playtest, the Sword Coast Adventurer's guide, and all those listed in the new AiF which are various adventures and such set in the FR. There's actually been quite the number of Forgotten Realms books put out since the FRCS, and many of them more general in what they cover.