Now that the 6D is in the mix, and the 5D3 feature set is clearly way beyond what the 5dmk2 offered, Canon has definitely created another tier within the xD series of cameras.
If there is no drastic departure from the original 7D - and this rumor indicates that it will still be APS-C, fast shooter, better-than-similarly-priced-FF AF. I see the 6D & 7D positioned how the 1D bodies were before the release of the 1DX. One is for the landscape and portrait shooter, the other for the wildlife and sports shooter. Note: I didn't feel like the 5Dmk2 and 7D did that due to the ~$800 price difference, considering that was 50% of the 7D price.
Canon has decided at least for the time being and for those who buy 1D series body - you don't have to make a compromise with your purchase (you shouldn't for $7k).
That won't be true for the lower xD class, I would guess that the 7D might be priced equal to the 6D. If that is the case though don't expect the 7D to beat the 6D at high ISO performance, but cleaner 100-400 should be expected. So upgraders will have a difficult choice to make, which suits their needs better, rather than just what suits their budgets. And it probably makes more sense for that type of choice to be made at this price point than at the top. Good move by Canon if this truly the direction.