I fully expect a 5" iPhone 6 with a full 1080p 16:9 ratio, but the bigger thew screen, the more pixel density it's going to need to continue the "retina" clarity. 1080p might not be enough.
With Samsung threatening a 2560 x 1440 AMOLED display in the Galaxy S5 next month (along with 4GB of RAM and a crazy fast Quad-Core CPU, and a Iris Scanner?), Apple is going to continue to lose marketshare to larger Android phones all Spring and Summer long. They probably won't release anything on the iPhone 6 until maybe September? That's going to be a LOOOOONG drought for Apple.
If you think Apple's current earning's report is a bad sign, wait till you see the next one...
Samsung's Galaxy S5 is going to drop at the worst possible time for Apple.
Apple needs to have a really HUGE upgrade/feature in the iPhone 6 too keep it's marketshare or it's going to fall fast.