According to Photo Rumours, Sigma is rumoured to be releasing a 135mm f/1.8 DG OS and 24mm f/1.4 DG Art lenses (the new Art line of Sigma lenses are designed to deliver the best image quality possible).

http://photorumors.com/category/sigma/

I certainly hope this is true, Sigma has certainly been making some stunning new lenses lately in their A (Art), S (Sport) and C (Contemporary) lines of lenses. The Sigma 35 f1.4 is one of the best lenses I own, being sharp as a tack, great colour rendition, contrastry, excellent bokeh and superb build quality (Zeiss like).

Exciting times!