This beast does, in fact, exist, and mine was drop-shipped from Onkyo's warehouse.
I have not had time to give it a thorough workout but here are my initial impressions. Those of you familiar with the Integra DHC-80.3 might already know these things, but coming from a PR
-SC5508 it's all new to me.
1) The OSD has been updated; it's now 1080p compatible, and overlay compatible, but it runs at a much lower resolution... so it seems kinda fuzzy when upscaled. The volume OSD now works properly while displaying 3d content as well.
2) Most of the relay clicking seems gone, but i did not have much chance to give it a thorough check-out last night. I still feel like my 2011 Denon did a better job flipping between resolution modes, but this is improved over the PR
3) Audyssey has 2 modes, a quick mode which sets speaker distance and crossover points, and a full calibration mode. So far I have only run the quick check. Default Audyssey setting was for 2 subwoofers.
4) The net/usb screen is refreshed, though the irksome remote operation is still the same (having to switch between NET/USB mode and Receiver mode).
5) This is a big upgrade in the looks department, though the drop-down front panel takes a bit to get used to. New volume knob and blue display (instead of the old green).
6) It seems like there are more options for 12V trigger assignability, as opposed to straight up Zone 1 / 2 / 3 for trigger outputs A / B / C.
7) I forgot to run a firmware update check, but I will post any info I get on that shortly.