According to those always crafty ANONYMOUS SOURCES, Remedy is beavering away on a brand new Alan Wake title -- a downloadable offering known as Alan Wake: Night Springs.
The gossip suggests that Night Springs will be based on the horror show of the same name, that was seen playing on in-game television sets during the course of Alan Wake. As a spin-off based on a fake TV show, it's unlikely that Night Springs will feature Wake himself, or continue the story.
Remedy recently said that more Alan Wake was in the works and it wouldn't be a sequel or DLC, though I'm sure nobody expect a concept like this. I'd me very happy to give it a go, I know that much. Anybody else prepared to go with this idea?