Yes. Only the XX12 models have Airplay already loaded, however, it has the same limitation as with the firmware loaded version in the 3311/991 and 4311 (ie. cannot be used on Zone 2 independent from main zone). The 4313 will "definitely" have Audyssey LFC and will "likely" have Neo:X. Additional new features may be offered as well.
Based on what has been said in this thread the 4311 will still be the one to get for me. I'd have to wait way too long to find out if NEO:X would be worth the wait. That would really be the only feature I could see myself holding out for.
With networking trickling down to 1912, 2112, and 2312 models, this year will be the first year we have networked Denon receivers that do NOT explicitly have the ability to send 2.0 PCM digital signals to Zone 2. I don't think we will know for sure until someone gets one of these units in their homes whether they will send networked audio (internet radio, pandora, airplay, etc) to Zone 2. It would definitely suck if they didn't...
A new 1912 owner has confirmed that the 1912 (and therefore the 2112 and 2312) will indeed pass Airplay and internet radio to Zone 2.
However, I noticed in the 1912 manual that one feature that is missing is that you cannot use the Web Control feature to SAVE/RESTORE the setup/Audyssey settings file to a PC file which has been the case with previous year networking models and is offered on the 2112, 2312, and 3312.
I wonder how much of a factor the earthquake/tsunami was in the delay.... isn't Denon's main plant in the affected region?
Purely anecdotal, but two Denon dealers near me (one a Mom & Pop shop, the other the local Magnolia) both said they are out of AVR-4311CI's, and that they were informed of a delay in new shipments because of the disaster in Japan. If the delay/change of plans is related to the disaster, it is the most understandable delay in the history of mass market audiophilia.
Augustine's Law: "The last 10% of performance generates one-third of the cost and two-thirds of the problems."
"If it works the first time, it's not high end." ~ Harry Pierson
The Analog Devices ADV 8002-4 chip is brand new and hasn't even been released yet, so AFAIK, there is no comparative information available on it against other chips. The 2312CI and 3312CI will be among the first devices to utilize the chip.
Actually, the AVR 3312 seems to have the ADV8002-1 where the AVR 2312 the ADV8002-4.
Don't know the differences, if any, between them, anyway.