Mark those dates:
Fuji will announce the new X-T1 on January 28 at 5-6am London time.
Olympus will announce the new E-M10 on January 29 at 5-6am London time.
As usual I will cover the announcement live here on MirrorlessRumors. With live I mean I will continually update this site with news, reviews, image samples and so on!