So if there are on MBP upgrade...or even a chassis design after MWSF...how long should I wait before purchasing? I really don't mind the MBP as it is right now. I am in no serious rush. I just want a case change...and a fixing on the heating a true LED screen and some minor improvements. I have my fingers crossed for Macworld. But, I don't want to build myself up with excitement only to be let down.