A custom development effort to bring full-fledged Windows 10 to ARM devices like the Lumia 950 recently got a major fillip, with developers managing to get the dual display feature working. This leaves the door open to the possibility of running Windows 10 on Android devices sometime in the future
https://www.notebookcheck.net/Windows-10-could-soon-run-on-your-Android-smartphone-Windows-10-for-ARM-developers-mark-a-milestone-with-dual-screen-display-now-supported-on-the-Lumia-950-XL.489452.0.html