Tamron has just filed a new lens patent on full frame mirrorless lenses. They are Tamron 70-130mm f/2 FE Lens and Tamron 200-400mm f/4 FE Lens. Both lenses are very fast telephoto zoom lenses for full frame mirrorless cameras.
The Tamron 70-180mm f/2.8 Di III VXD lens for Sony E-mount is expected to be announced in next few days, release date in late Spring, 2020. According to an interview by David Oastler above, the price for Tamron 70-180mm f/2.8 Di III VXD lens will make everyone happy.
Tamron has just released their latest financial results of 2019. In this PDF file, Tamron said that they will announce three more mirrorless lenses (Probably Sony E-mount) in 2020, after the Tamron 70-180mm f/2.8 Di III VXD lens coming this Spring.