After the current book (coming out this year) which was the final novel of his current contract, Bob and WotC inked another contract calling for 6 novels, 1 per year, starting in 2011.

So it looks like at least 7 more Drizzt novels.

Hoorah!

The press release can be found over at N.Y. Times Bestselling Author R. A. Salvatore

Cheers, and congrats Bob. Never doubted for a moment that you were still having fun. And I, and many others, appreciate that!