The upgraded hardware is a welcome improvement, although, like a lot of folk out there, I have some serious questions about that camera. I sincerely hope Microsoft are going to add an external screen to act as a viewfinder and quick settings/notifications centre, much like the galaxy flip external screen, but who knows.
Either way, I think I'll opt in and buy one. I used the original duo for a couple of weeks and sent it back. The hardware was lacking and the software was extremely buggy.
If they can improve the hardware, build it from more premium materials (the plastic outer on the Duo 1 was not up to standard), add a better camera and small external screen, massively improve the software, and keep it in the £1300-1500 price range, it'll be well worth giving it a go.
Also...pipedream stuff, but W11 rather then Android. But that's not going to happen any time soon.