Well, that makes my point. You are saying they "could" but "won't" I suggested they "can't," but regardless of the reason, it isn't happening and isn't likely to happen.
I agree that it seems unlikely that they would keep the 5D2 around at a lower price point since they will probably just retool those assembly lines for other higher margin bodies.
Though I would not be too surprised if they (at some point) introduced an 'entry level' FF body that sits a little lower then the current 5D2 price point. Though even that I would not bet money on since they would then be competing with the used market for their own products, esp since the proposed 5D3 is not really that huge of an upgrade so 5D2s will probably retain a lot of resale value.
Oddly enough, I am personally hoping whatever they come up with pushes the used prices down a bit. I keep watching the 1Ds2 used market, but discounted 52Ds would be pretty enticing... sadly I hold little hope of the 1DX pushing 1Ds3s down into my price point....