First, I'm interested in your opinion of the new JBLs.
Second, the new HK AVRs are kind of an unknown at this point. The best you're going to do with regards to how it "may" be is to read the thread on the 1700. It shares the same basic design and amp.
The 2313 is a known entity, so, again read the threads.
I have an older HK AVR 1600 which I like a lot. If I were to upgrade I would look at the new 2700/3700 but not at their current price. Both need to come down at least $200 IMO to be competitive.
If I needed to buy an AVR today, it would be the Pioneer SC-1222k. IMO currently the best value in AVRs going. About $530 from NewEgg.
Klipsch RF-62II, RC-500, RS-400, SVS PC12+,
Def Tech SC8000
Harman Kardon AVR 1600
PS3, Apple TV, Sharp 70" Qattron