NAD has their new MDC (Modular Design Concept) modules coming out shortly. These modules will "future proof" your AVR as technology evolves. This of course remains to be seen, but the whole concept is very sound & makes all the sense in the world.
You'll be able to pick & choose a module that fits the upgrade path that suits your needs. No need to buy another whole unit. I'm looking forward to it.
I believe NAD is the first with this concept (correct me if I'm wrong) and shows their level of design detail that shows a commitment to the way they approach the future of the industry. Technology changes at a rapid pace & hopefully their MDC modules will keep pace.
Panasonic 65" 3D Plasma, Yamaha RX-A3010 AVR, Rotel RMB-1095 (5) channel amp, SONOS music server, CA DacMagic, Yagin Tube Buffer, "Dual" Velo SPL-1200R subs, Anti-Mode 8033 sub EQ, OPPO BDP-93, KEF Q900 mains, KEF Q600 center, KEF Q800 surrounds, KEF Q100 rear surrounds, Def Tech Pro Monitor 1000 front & rear presence, Equitech balanced power, Room treatments