I'm not sure they'll do any bump until next fall. I think they'll be sticking to their time frame, especially since the desktop hardware is expected to be updated in the spring.
This would be a pity if the appropriate Kaby Lake CPUs become available in Feb -March 17. You can bet that A pple's competitors will have the newer processors in their products as soon as they can, and the MBP will face competition from updated Dell, HP and MS laptops.