https://www.l-rumors.com/sigma-anno...leased-in-2019/

Sigma announced their L-mount strategy:

1) Make FF Foveon L-mount camera in 2019
2) No more SA mount cameras
3) Continue to develop and produce SA mount lenses
4) SA-L and EF-L mount adapters to be released in 2019
5) First Sigma L-mount lenses will be released in 2019. First they will make L-mount version of current lenses and then also develop special L-mount lenses only
6) L-mount conversion service will start in 2019