As rumored before, Sigma will announce their FE lenses for Sony full frame mirrorless cameras around CP+ Show in early March. Now according to leaked weibo from Sigma China (Now deleted), they confirmed a lot of new lenses is coming very soon, Sigma already have many new lenses for Canon and Nikon DSLR cameras, so these upcoming lenses will probably Sigma FE lenses for Sony full frame mirrorless cameras.
According to previous rumors, the Sigma FE 35mm f/1.4 AF lens will be the first FE lens for Sony FE mount. Sigma China also confirmed that not only this lens will be announced, there will be more FE lenses coming soon. Stay tuned for more info.