So we've been both working on and putting off the new view system in Decal for ages. Checksum did a lot of work to give us something to extend, and we've been chugging along with that. We have a couple of semi-usable controls, and a simple form/view loader. The integration with Decal still lacks a great deal, but there's one very big problem with the system: It's fugly.
Above you can see NVS or Decal.Forms in our test container. It's not going to win any beauty pageants for some time.
We do have a powerful theme system that goes along with NVS though. Once the controls stabilize, and we start working on performance, it shouldn't be hard to make things look great. Of course, none of us have any artistic talent so it'll never look that good (unless we can con an artsy person into the core team).
In support of this effort (though mostly just so I can say I finally finished rewriting it) I've put some effort into reviving Portal Opus. I had been sitting on the framework for ages now and decided a couple of days ago to go ahead and integrate Ken's DatUtils to speed up the progress (his spell table object probably saved me an entire night of coding easily). Right now it supports all of the textures that Decal supports and loads the skill and spell tables. I'm going to fool-proof it a bit and post an alpha in the near future. After that, I'm going to start building a model viewer into it too.