- Sigma 135mm f/1.8 DG HSM Art (has been rumored for a while)
- Sigma 14mm f/1.8 DG HSM Art (full frame DSLR lens)
- Sigma 24-70mm f/2.8 DG OS HSM Art (also previously rumored)
- Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary
Update: leaked pictures of the four new Sigma lenses can be found here.
Update: the four new Sigma lenses are now listed on the company's official website:
Here is the current line of Sigma Art lenses (see pricing):