I wouldn't be surprised if they break tradition and at least tease iPhone 6. With 3 new flagship Androids being release over the past month or so I think they need to show its going to be worth holding out for the new hardware. I've already seen more leaks for 6 than I can recall for any other generation of iPhone and I suspect that's calculated.
I just hope to see something besides the rumored health apps to get me excited about iOS8.