Recent/Upcoming Forgotten Realms novels:
2014
The Reaver (The Sundering 4), Richard Lee Byers (February 2014)
Night of the Hunter (Companions Codex 1), R.A. Salvatore (March 2014)
The Sentinel (The Sundering 5), Troy Denning (April 2014)
The Herald (The Sundering 6), Ed Greenwood (June 2014)
Rise of the King (Companions Codex 2), R.A. Salvatore (September 2014)
Fire in the Blood (Brimstone Angels Series), Erin Evans (October 2014)
2015
Vengeance of the Iron Dwarf (Companions Codex 3), R.A. Salvatore (March 2015)
Spellstorm, Ed Greenwood (August 2015)
Archmage, R.A. Salvatore (September 2015)
Ashes of the Tyrant (Brimstone Angels series), Erin Evans (October 2015)
That's what I could find between Amazon and the Forgotten Realms wiki.
Cheers!
I found both The Adversary and The Companions to be good books that you could read without knowing too much backstory (the links are to my reviews of the books), although I'd probably suggest starting from Erin M Evans first novel with those characters, Brimstone Angels - her books are really good to read.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.