I sincerely hope its just a false rumor that tech blogs have decided to run with. Running android apps on WP will essentially kill the platform. Why would a dev bother making a native app for WP styled to its UI and unique features, and tested for stability on the WP platform, when they can just make one android app and call it a day? The result ends up being poorer quality, buggy apps with little support for WP.
From the consumer viewpoint, why bother buying a WP to run android apps at diminished performance and buggy quality, when you can just buy an Android phone built to run those apps faster and more stable?
Its a stupid idea all around, and doomed to fail if its indeed true. It certainly didn't help BB, it won't help Jolla Sailfish, or any other platform for that matter.