Nokishita reported the price for the Sigma 56mm f/1.4 DC DN Contemporary and Sigma 40mm f/1.4 DG HSM Art. It looks like preorders will start November 2nd (Ship Nov 22nd) and the 40mm will cost 137,700 yen ($1215.68 USD), while the 56mm will cost 48,600 yen ($429.06 USD).
via Nokishita