HOLY SH- You sure are hopeful. Apple currently is making 1.3 GHz CPUs. What in the world makes you think they will jump 1.0-1.1 GHz for the 4.7 and 1.4-1.5 GHz for the 5.5 in just one new iteration of iPhone???!!!
Anyway...
---My Prediction---
4.7" iPhone:
1.5 GHz A8 (POSSIBLY, maybe.. Quad core CPU)
Hopefully 2GB of RAM, but sadly I think there's a chance they might stick with 1GB >_>
10MP camera, further lens improvements
1810 mah battery I think is what was rumored
5.5" iPhone (If there is one):
I think they should continue with their practices of the whole Retina Mini and Air sort of situation. Same (or at least similar) specs, different size for people who have different needs and wants. Everyone is happy with the peak, flagship, performance, *and* size of their device.
However, if they have decently differing specs, I predict the following for the 5.5" iPhone if they make it:
1.6-1.7 GHz A8 CPU (again, possibly quad core CPU, if the 5.5 gets it, I think the 4.7 will because they both should be getting the A8 chip just with minor differences in clock speeds)
2GB of RAM, but I think there definitely is still a possibility of Apple disappointing us with 1GB.
12MP camera, lens improvements
Not exactly sure what they will do with the battery. Or the display resolutions for either phone for that matter.