Sigma is rumored to have a new product announcement on July 11th, 2019. According to our source, Sigma will announce a new series of E-mount zoom lenses for Sony APS-C & full frame mirrorless cameras. Just like current Sigma E-mount prime lenses, these Sigma E-mount zoom lenses will be redesigned from Sigma EF mount/F-mount zoom lenses.
There is also a chance that Sigma will announce new zoom lenses designed exclusively for Sony mirrorless cameras, as Sigma CEO already confirmed before. Stay tuned.