I read an article about the new Sigma (it's in Polish) and suggested price (6990PLN) is a little bit higher than $2000. It's, of course, dependant on currency rate.
Images from El Pedro link comes from Polish website, so I link two articles. Who is interested may try to translate them in google translator.
They also mentioned other new Sigma products: teleconverter 1.4, teleconverter 2.0 and lens 18-300/3.5-6.3.