Work on what will become Fences v4 is going. It's slow going so we have no ETA on it.
Fundamentally, what we experience not just with Fences but across all our apps is a lack of available engineers who can do this sort of development.
Even Microsoft struggles to do OS level UX updates effectively. Some of you may have heard of the Sets debacle. It was Microsoft's equivalent to Groupy. There just aren't that many developers these days who can do this kind of thing.
"Back in the day"
This might be hard to believe but at one time, WindowBlinds, our most complex desktop enhancement didn't use have one competitor, it had TWO: eFX and Chroma. Now, it literally has none. Even Microsoft gave up on the uxtheme thing some years ago.
Microsoft was able to steal some of our engineers. The whole Windows compositor tech that allows for high DPI was led by a former Stardockian for instance.
So when you get into Fences, it's the same sort of thing. Our lead on Fences has a lot on his plate and if we can just get more engineers, we could progress more quickly.
But in the meantime, we are paying attention to this thread and prioritizing what should go in.