Yes, A Vampyre Story 4. In rather a cool interview with IncGamers, Bill confirms that AVS is going to be more than just a trilogy.
"We won't get to meet Shrowdy's mom until A Vampyre Story 4, though she makes a brief appearance at the end of the credits in A Vampyre Story 3. And we will definitely be meeting Jack the Gimper, the creepy chap in the painting. He plays an important role in AVS2. We'll also meet Carpathia the Wolf-Woman ™, the Mortus Monster, and we will get to change Mona's costumes for the first time. And trust me, seeing the outfit she has to wear will be worth the ticket of admission. Also, in the first half of the game the player will be playing Froderick exclusively while Mona is incapacitated. But I should say no more..."
He also mentions that Autumn Moon's non-AVS game will be announced early 2009, hopefully.
Again, I love Tiller, Autumn Moon, and AVS, and I'm not trying to be a naysayer, but... we're talking about AVS [i]four[/i] already?
Too bad we won't see Shrowdy's mom in person for the next four years. I wonder if her presence in the next two sequels will be felt as strongly as in AVS1 though.