@Loco Emperor
Don't get me wrong, but why would they waste resources on W10? Seriously. Ask yourself this: If you own OnePlus company, and you have (very!) limited resources, you would use those for a W10 build?
I mean, even MS doesn't waste much time on W10 anymore. I would love that W10 was a success, and that we have a great 3rd mobile OS on the market. But W10 is a complete failure, and is rapidly loosing it's customer base that was pretty scarce to begin with.
I hope MS will roll out something great in the future (Surface phone?), but I highly doubt it. And no one makes W10 phones anymore, not even MS. So to waste even 1% of workforce would be pretty stupid. They can release salfish and bb10 version as well then. Same logic applies.