I don't think there very small bumps to CPU clock speed in your example are in anyway comparable to the suggestion that they will introduce 32GB as an option or the default in a few months. So I don't think this is an example of what is being discussed.
The first example I came across, they did it after 8 months in 2011. Maybe you're right, maybe the Macbook Pro is just a beefier Macbook now. They didn't even splurge on the most up to date Intel chips, but the price went up?
This is so disappointing, after a long wait too.