Right off hand I'd say getting the rest of the planned 3DWS feature set working would be a good start. I see that 3DWS "early adopter" demo is from September... time for an update? It's hard to spend $119 for a product that hasn't shown any new features for about 4 months. I'm not being critical as I know it takes a lot of effort, but I'm not moved to purchase given it's current status.

The second item that would be desireable is to export files that can be imported to 3DGS with as little "tweaking" as necessary. Personally, I've grown tired of having to use multiple apps to get my levels where I want them. Model in this, texture in that, lighting in this, ad nauseum...

I've heard good things about Cartography Shop from Torque users, hopefully 3DWS will truly be "next generation" and streamline the world building pipeline for 3DGS users too. Cheers.