Yes, I'd like to see a new OS X version as well, especially if it address's the lingering formatting incompatibilities with the iOS version. I don't expect the iOS version to become as powerful or flexible; instead I'd like the ability to lock a document to the iOS format, so that when editing in OS X I would be limited to iOS compatible features.
That would be better than the warning you get every time you pass a document back and forth.
I also need to upgrade my iLife suite on the Mac. It's about two full versions behind.