*Yes, I know this probably means nothing*
I called up the Apple education store yesterday to ask about something, and while I was talking to the guy I said that I was waiting for the Haswell rMBP. He said he hadn't heard anything at all about that, that he knew what Haswell was but he didn't think there was anything coming out soon.
As I said, it almost certainly doesn't mean anything, but it was interesting that he knew what Haswell was and said there wasn't anything coming out, normally they just say 'I can't tell you anything' in my experience.
Regardless, I'm beginning to think that while Haswell will obviously be an improvement, is there really going to be as much of an improvement as we're making it out to be? The Haswell vs Ivy Bridge MBA benchmark scores are within margin of error of each other, and the current rMBP still easily gets 6h of normal use.
Depends on what you consider to be an improvement. In my opinion, it will be a massive improvement.
Some people think the 5 to 5s for the iPhone was a small upgrade.