So MS has said that they are focusing on the low-end and that they are shifting flagship engineering to devices coming out with Threshold next spring/summer. They did mention forthcoming high-end devices (but note they didn't say flagship or hero so not likely cutting edge). Here's what I think we're going to see in the US.
- Successor to the 1020. Most likely this will be a 930 with an upgraded camera module and possibly an updated SoC compared to the 930 to better support the high-res camera. It might incorporate Canon's liquid lens technology to provide optical zoom and allow for less of a hump. Almost certainly will be called the 1030.
- A slightly upgraded version of the 930 with a few minor tweaks. It will probably be called the 935 and/or 938 (think 920 -> 925/928). This will probably be available for AT&T and possibly T-Mo
- Lumia 1525 we already know about. Basically a 1520 with a few tweaks and a slightly newer SoC.