The rumors of new MacBook Pro models have been circulating for weeks now. Even before the MacWorld Expo, an announcement was expected from Apple, however with most of the attention centered on the MB Air, it's likely the Pros time for an upgrade will come between February and March.
Back in November when I bought a MacBook Pro for my personal use, I did so knowing a change was incoming, but I still did not want to wait. A few months have passed and the advice today is that if you are in the market for a high-end laptop like the MacBook Pro, you are better off waiting a bit longer and grabbing one of the newer ones. It's unlikely a complete cosmetic overhaul will be part of the upgrade, but faster processors and a multi-touch trackpad inherited from the Air are well in order.