I have been working on a little side project to add a GCode Viewer to the DWC 2.0. I don't know if anyone would be interested in something like this but I have a little video showing it to see if there'd be interest in this.
https://www.youtube.com/watch?v=rlreuMFQjJ8
Update
The newest versions of a new plugin for DWC 3.2 is a available here.