According to latest tweet by Sigma CEO Kazuto Yamaki, Sigma’s upcoming lens roadmap will mostly be DN series lenses exclusively designed for mirrorless cameras. Both for full frame and APS-C mirrorless cameras. This means we will soon see more mirrorless lenses exclusively designed for Sony E-mount.
Translated From Sigma CEO:
Most new products in the future will be the DN series designed exclusively for mirrorless cameras. The DG DN series for full-size mirrorless, which is frequently requested, will be the center, but we believe that we need to expand the DC DN for APS-C (+ MFT), which is currently popular.