Macbook pros do not have to announced at the event. Apple has updated Macbook pros, iMacs, Mac mini, Cinema Displays and other hardwares in the past without having a press event.
I expect Macbook pro to be updated without a press conference in Feb/March.
I do expect Apple to host an iOS 5.0 Event for iPhone and iPad sometime in Mid March to announce iPad 2.
iPhone 5 is reserved for WWDC 2011 along side with Mac OS Lion with potential upgrades on iMac and Macbook Air.
iPad 2 will be most likely be released in April 2011.