@BrettAnthony Sure thing man. You can add touch support if it's something you need.
Is this something that would be desirable in the future?
The future. Well, there's a few things going on right now that might affect the future.
I'm currently working on significantly improving the MonoGame.Extended.Gui system in the 2.0 branch. I'll be posting my progress on my Patreon page if you want to follow along.
NuclexGui isn't something I'm investing a lot of time in. It's difficult to say how many people are actually using it. If it's something you're interested in doing that's fine with me.
Speaking of which, it's crossed my mind that splitting up MonoGame.Extended into different git repositories might be useful. It would allow each part of the library to be maintained and versioned separately. It would also improve visibility of how many people are actually using each part. NuclexGui might be a good place to start. How would you feel about that?