According to Nokishita Camera, upcoming Sigma 60-600mm f/4.5-6.3 DG OS HSM | Sports lens will be officially announced tomorrow, September 26th. Japanese price for this lens is 213,300 JPY, US price around $1,599. Release date for Canon EF mount will be on October 12th.
It seems that Sigma ’60 – 600 mm F4.5 – 6.3 DG OS HSM | Sports’ reservation starts in Japan on 26th September. Scheduled release date for Sigma · Canon for October 12th. It is for Nikon on October 26. The mass retailer price is 213,300 yen including tax