I'm agreeing with the people here saying the next iPhone will most likely just be a minor refresh, and this info seems to bear that out.
It makes sense from a manufacturing perspective to use a mature design with high yields. It also gives another 12 months for that per-unit cost to keep dropping (if it's a June release). And we all know Apple likes to have a decent margin.
As to CDMA, I honestly can't see them running two concurrent lines. Especially considering outside the US CDMA is not huge. It doesn't really make sense to have a Verizon-only model, even with the number of users on that network. It's messy, and we're running towards the end of 3G over the next couple of years.
The big deal would be, I guess, the LTE model that comes out next year. That gives the networks a chance to build infrastructure and Apple enough time to get the hardware sorted. I'd also assume a dual-core A4 (A5?) part by that time - this year's revision will likely just run at a higher clock and would probably see release first in the iPad 2. Not that we'd know anyway, since PA Semi are now part of the Apple 'Cone of Silence'.
Of course, this is Apple, so who knows. I'm just making conservative guesses