Thanks to the rooting capabilities provided by WP Internals, developers are now able to find ways of running Windows RT and even Windows 10 on ARM on Lumia handsets paving the way for some cool hacks.
https://www.notebookcheck.net/Windows-10-on-ARM-shown-running-on-a-Lumia-1520.278206.0.html
I hope that it'll be possible to run Android on these phones, and the one showed is a Lumia 830.