I haven't been able to find any credible information about resolutions but the rumors seem to point toward less than retina. But the flip side of that is most

I haven't been able to find any credible information about resolutions but the rumors seem to point toward less than retina. But the flip side of that is most of the Windows 8 interface is rectangles with large type. You don't need very high resolution devices to make that style of interface look crisp and sharp.