We know Olympus will announce the new 300mm PRO lens at CES (January 6th). And I suspect Panasonic will show us the final 100-400mm MFT lens specs and design. But so far I heard nothing about a possible Panasonic MFT camera announcement at CES. The GF 4K camera is more likely to be announced at CP+ by late February (or later).
It is still unconfirmed when Olympus will launch the PEN-F (CES or CP+???)