SigmaRumors believes the new Sigma 24mm f/1.4 ART lens will be announced in Q1 2015 already. Other rumored lenses for 2015 are the 16-20mm f/2.0 ART and the 14-24mm f/4.0 ART. All very nice lenses but Sigma really should speed up the A-mount release. Really makes nos ense to have to wait over one year for the A-mount version :(
Where are those lenses coming?
50mm ART: not in Stock in USA Amazon (Click here) at BHphoto (Click here) and Adorama (Click here). And in Europe at WexUK (Click here) and WexDe (Click here).
24-105mm: not in Stock Amazon (Click here), BHphoto (Click here) and Adorama (Click here).