The strategy has worked very well for 5D3 because two many people were waiting for and wanting it.
Might be different with a winter release of the 6d, more people on the northern hemisphere could be willing to wait a few month instead of paying the "eaf". Don't know about down under, though :->
Yeah, but don't forget, we're up the DUF here (as in: Down Under Fee).
I'm not expecting it to come under $2500 in a shop here.
That said, I'm not buying one. Too much money invested in Canon glass, don't need an FF *that* much (eos 3 and 6x6 film will keep me interested for a while). If I was in the market, and didn't have to sell a whole bunch of glass, the D600 looks a lot better.
Even if i were in the market and sticking with canon, between a decently used 5D2 plus 24-105 for the same price as a 6D body (considering the main specs, MP, fps, AFpts, are about all the same), i'd be picking the 5D2+24-105 any day.
I'm sitting this round out. See you when the 5D4 and 6D2 come out, and hopefully pique my interest a bit more.