After positive feedback from Rick Sternbach, I decided to push forward with the Voyager "Full Circle" refit.
I will, somewhere in September, start on this. Right now I'm just brainstorming on how to update the 16 year old design in a natural way. I'm calling this an update, but what I really have to do is start from scratch.
The ship probably saw a major refit after it returned from the Delta Quadrant, so that does leave some room for changes. I do have some ideas, but I want to be careful not to take them too far...