Rumor has it that Sigma will be releasing two new ASPC lenses on June 17th(at B&H's 'BILD' event), a 12mm f1.4(with aperture ring) and a 17-40mm f1.8(not mentioned is if it has an aperture ring. These, especially the latter, are very exciting lens for the X mount. Instead of trading in my 16-55mm f2.8(version1) for the version 2 I could definitely see myself getting this new Sigma zoom-it will be as heavy as the version 1 Fuji zoom but having that speed would be great. These two lenses are part of their 'Contemporary' series so we'll have to see how good they are. But exciting news I feel.