This still just a rumor?
I currently own a Lumia 1520 so I won't be replacing it, but as much as I would like more manufacturers to embrace Windows Phone, I'd be leery of this. I have family members who own HTC 8X, I owned an HTC HD7 and a couple of friends own various HTC Android phones and I've yet to see one with a decent, not even good, but decent camera.