Nokishita indicates that Sigma’s next launch is a DG DN (mirrorless only) treatment of the 35mm focal length. Sigma already makes an f/1.2 monster DG DN lens that is one of the best lenses of any focal length available today.
Sigma has also been hinting at supporting additional mounts with upcoming DG DN lenses, including Canon RF and Nikon Z mounts. Since mirrorless became popular, Sigma has been making mirrorless-specific lenses only for E mount and its own L Mount Alliance system after it opted to shelve plans to continue with its earlier, proprietary Sigma mount.