I expect there will be new SDK Tools and new converters but I can't promise that yet.
I'm looking forward to it!
I hope there will be SDK tools with much better graphical user interface, for example X-Plane has World Editor and I really like that.
In addition, Blender and SketchUp plugins would be very much needed. Also, I hope we don't have to use coding and plain text editors to make scenery, because these are very confusing and primitive.