Tamron today has officially announced they are developing two new FE lenses for Sony E-mount: 35-150mm f/2-2.8 Di III VXD and 28-75mm f/2.8 Di III VXD G2 lenses. Both lenses are expected to be released in late 2021.
Tamron Developing 35-150mm f/2-2.8 & 28-75mm f/2.8 G2 Lenses for Sony E-mount