The VR-09's organs (per the video that aellison62 referenced) sound very similar, if not exactly like, the ones on my 12-yr old VK-8. My only complaint about the VK-8 organs is the leslie sim, and a vent would probably do wonders for a VK-8. The VR-09's other sounds (AP, EP, clav) are light years beyond the VK-8. At $999, the VR-09 seems like a steal to me. I can't imagine a single VK-8 ever selling again once this hits the market.
I agree with niacin about the organ demos - I wish they'd put a larger variety of drawbar combinations and styles into the demos. I'm pretty sure the VR-09 supports 3 separate organ parts, each with its own drawbar settings (upper, lower, pedal). Roland makes a very nice MIDI pedal board - Why not sit a real organ player down with a VR-09, some other 61-key controller MIDI'd in, Roland floor pedals connected to the "PK-IN" port on the VR-09, plug a Roland expression pedal into the "Exp In" for volume, and turn the organ player loose? Granted, the cheapest pedals (PK-6) are only $100 cheaper than the VR-09 keyboard. Still though, show us what it can do!