Infamous Adventures (guys who remade KQ3 originally), recently released their SQ2 remake and anounced a King's Quest game based somewhat on the Kingdom of Sorrow novel.
http://www.infamous-adventures.com/h...x.php?page=kos
Think I may be more excited about that game then this one. Likely won't have the production value of Tell Tale, but it looks like it may 'feel' a lot more like a traditional sierra game.
Too bad the guys at AGD Interactive aren't doing it though - they seem to have the best grasp of the aspects of KQ games that I enjoy.