Unfortunately I think the chances of someone who actually knows the answer to your question responding with anything substantive is extremely low. The good news is that CES is basically here, so if there's going to be an announcement, we'll see it soon.
That said, it could be that they announce it now to ship in say June. So whether you sell today or 5 days from now (after an announcement) you may be without a set for some time.
I too am potentially interested in the 80" you described...
Stuck up, half witted, scruffy looking, nerf herder.