FoV was described as being the conclusion of the dragon knight's story, so I don't think we will be seeing any more expansions. However, Larian is currently working on Divinity 3 (not many details released yet, other than it having a top down camera view and allowing you to finally defeat Damian) and Dragon Commander (strategy with a lot of RPG elements, and dragon combat expanded on from D2:ED/DKS).
