Based on the fact that I can get Windowblinds 10 to run on Windows 11 via explorerpatcher or reg editing I do not think an overhaul is necessary.
I would imagine that WindowBlinds 11 would want to make all the Windows 10 era skins easy to transfer over since there is already a lot of artwork available. My bet is that start 11 taskbar changes are being made to help with this transition. Other then the taskbar, the other main issue is getting the command bar working rather then having to use the old ribbon. A couple of smaller issue is that the Microsoft store apps full-screen button still needs to be incorporated in and also a transparency issue needs to be addressed. The needs are too few for a major overhaul.
As far as curtains is concerned.. There definitely is demand for that, but it seems that program would need a major overhaul so it is hard to say if it has a future or not.
It's now February 2021, several months after the release of Windows11, our we any closer to even a Beta WB11. Done so much testing with PhoenixRising1 on the WB10 working and stable on Win11. I think i must have tested around 40 older skins from Vamp and neone6 and besides the transparent edge to explorer windows, they were all stable, do not get me wrong, i did not have the time to test out every aspect of those older skins, maybe about an hour on each one, testing all the usual things to make sure there was no crashes and things worked and looked as they should.
It is crap not knowing when we will see any forward movement with a possible WB11, yes i too think it will be a Stand alone Program, hope it is not a Hybrid with Curtains. If several users can come so far in there spare time, you would hope the Devs who are paid to solve these issues could move quicker, given they have more time and resources at there fingertips.
It's horrible to read comments from old hands who produce amazing Skins and are thinking of throwing in the towel due to Various reasons. My two favourite skinners have already branched out on there own, i can only hope other gifted skinners consider doing the same before they decide to give up doing what they do best, we can not lose that kind of Talent completely, that would be very wrong .