Saying iOS was fresh and different is a bit of a mega-understatement. No one had seen anything like that before. No stylus, no menus, fluid scrolling, soft keyboard, pinch zoom, etc. and it all worked fantastically.
I can understand the need for having new features but for an overall redone look of the OS I think works against the idea of progress for an OS. Even OS X hasn't drastically changed since 10.0, I say this in the sense that if you took a user who had only used 10.0 before and sat them down in front of 10.7 that they would likely still be comfortable doing what they need to do (mind you there would be a host of new features that they would have to learn about).
Anyway, I do not foresee iOS 6 or 7 being massively different than iOS 5 because the changes to the infrastructure would be massive and effect not just Apple but all the app developers. Until OS X and iOS finally merge together (which I don't think is going to happen too soon but I sort of think is inevitable) we will not see any big changes.
Do you think Android is boring? I've never used it.