From my side, I think for the future of OpenStack, simplicity of our users and our operators that are involved here, it's time for a rewrite. I feel like Adrian is probably supportive of this too. I
This has been a really interesting discussion but it seems like we might be hitting a few things 1. Distributions are happy in the way that Horizon is deployed today 2. Distributions don't want to have a front-end JS based thingamajig 3. Users, operators and deployers want to improve the UI experience of Horizon 4. There is so much _historic_ stuff stuffed into Horizon that rewriting something from scratch is easier than refactoring Horizon 5. The path to improving UI inside OpenStack is "starting from scratch". think it's too late to "cleanup" and the progress we can make by iterating on new technologies can get us there way quicker.