This article (speculative) from July suggests that the rising cost of DRAM manufacturing would likely offset the lower costs of SSD + retina display production:
http://appleinsider.com/articles/13...owered-retina-macbook-pros-to-ship-in-october
Meaning that prices are likely to stay in the same ballpark. But an iGPU-only configuration could lower prices a bit too...
I think the perfect compromise for me would be an IGZO display + iGPU-only, with the same general SSD + RAM options as the current models, at the same general price points. I could probably live without a dGPU if it meant getting an IGZO as a consolation prize.
Would probably be wise to revert to my go-to "Expect nothing and you won't be disappointed" mantra, though.