Unofficial rumors indicate Apple is planning to upgrade their MacBook Pro in April 2011. MacBook Pro (if it comes out) will have a new 512 GB hard drive which supports Light Peak technology delivering file transfer at 10 GB/s (in future possibly increasing to 100 GB/s). As you may know, Light Peak technology is being developed by Intel and Apple as an alternative to USB 3.0. Earlier this year Intel representative mentioned the release of Light Peak in 2011. Possibly, MacBook Pro is where we will see its implementation.
Another rumor going around is that upgraded MacBook Pro will not have an optical drive and will contain a new version of Final Cut Pro, which also begins official release in 2011.