Between Samsung and HTC, I am curious if anything new from them comes out prior to 8.1 early next year. Nokia really only has kicked out 3 new devices, and that is if the 5" L9XX is real as it has not been officially announced. I can see a couple new HTCs and 1 new Samsung with 8.1, but I do not think we see any new WP's from them over the holidays.
However, I am not worried about the Lumia line being the only hardware. So long as MS gives incentive to keep Nokia engeineers and designers onboard then the aggresive improvements with the WP devices we have seen will continue. That, however, is not a given and I hope MS gives 10% raises to everyone involved with the Lumia line. We need them so bad.....