WP8 Mid Range King?

As one of those who inevitably have to buy an unlocked phone - a hugely expensive undertaking- I'm looking for a Mid range alternative. What I think a mid range phone should have is a 720p display (WVGA should have died with WP7) and an 8MP camera, along with the standard WP8 hardware guidelines. Having seen the Ativ S and Lumia 920, both almost certainly expensive, as all flagships are. I can only hope the HTC 8X will be in the $400-550 range. Are there any other alternatives? Any rumors about the 8X apart from the leaked manual and render? And what're your views on the missing midrange (please dont include the Lumia 820, 800*480 just will not cut it.)