Sigma has been updating its designs for mirrorless cameras and according to Nokishita the next lens they will announce is the Sigma 150-600mm F5-6.3 DG DN OS | Sports. This lens will likely be for E and L Mount alongside other mirrorless mounts out there.
The next lens that Sigma will announce will be “150-600mm F5-6.3 DG DN OS | Sports”.
via Nokishita