As I understand it, models without wifi or GPS will only be available in countries that restrict the broadcasting of wireless signals ... something like the FCC not approving a device. If you are in the US, there will only be the one model with Wifi and GPS.
What I found interesting is there was the instant rebate associated with this brand new product. It would seem most plausible that a 200 dollar discount could be found on the body only. Here's to seeing a $1899 6D body at Adorama or B&H in 2012!
I see the body only still shows as 2099 at Norman but if that price holds, it is hard not to get the 24-105 for $600 new. That may mean even more of these lenses showing up on CL or eBay further depressing the resale price on the lens.
EDIT: Wow, so the latter appears to be true. Time to quickly sell my used 24-105. I thought I got a good deal on it for 700 used last year, but 600 new is even better.