It looks like we're finally going to see pricing and preorders for the Sigma 24-70mm f/2.8 DG HSM OS Art series lens this week, and maybe as soon as today.
Sigma announced the 24-70mm f/2.8 DG HSM OS Art lens back in February alongside the 135mm f/1.8 Art and 100-400mm f/5-6.3 OS C which have started shipping and the highly anticipated 14mm f/1.8 Art series lens, which has yet to have a ship date.
We will notify you as soon as preorders become live.
*UPDATE*
Preorders for the Sigma 24-70mm f/2.8 DG HSM OS Art will begin at 1:00AM, Thursday, June 22. Pricing is not currently known.