If it was running Windows 10 like Surface Neo would it have changed your mind, assuming you would see some productivity benefits being a Windows ecosystem user?

But its doubtful Neo would see its light and even if Microsoft released a tablet with Windows 10 IMO it's again getting into the same mess of Windows Phone era. If Neo gets successful, it would likely need to release a smartphone with Windows 10 and if Duo gets successful it would need to scale it up to tablet(which is what likely to happen).

>My Nokia phones from the windows phone 8 era

I concur, I bought a Lumia 640 for development of our app for Windows Phone ecosystem. One day I used a different charger (Of same spec) and the phone charging port went kaput; Searching the web, it seems to be a very common problem but MS never bothered to call back the devices. But, there are similar stores for Google Nexus line of devices and I think for early Pixel devices too.