Here's the way I would estimate it (based on CHF, sorry, but about 1:1):
40D - 1300
1DIII - 4600
D300 - 2100
D3 - 5800
Since we
expect a new 5D would be between a 40D and 1DIII (anyone
want to argue that one?), and likely will be priced above the nikon
D300 (based on the nikon-canon staggered, non-competing models law -
someone should look into non-competition regulations about that). The
clear anyswer is the new 5D will be 2100-4600Fr (that doesn't really
help, does it? Then split the difference - 3300, street price after
settling)
And now for more of the same, I predict the following prices
completely at random for fun:
50D - $1400
60D - $1350
70D - $1300
1DIV - $4500
1DV - $4500
1DXXX (only for 'art' photogs, includes model and lubricant) - $15,000
Now, we shouldnt have to speculate for at least a few more seasons