Tamron patent discloses a new 135mm f/2.8 and 350mm f/4.5 lens design for mirrorless
I spotted a new Tamron patent describing two new lens designs for Full Frame mirrorless. Tamron is also known for selling their optical designs to Zeiss (for their Batis line). But the design of the 135mm f/2.8 lens is very different from the current Batis 135mm lens.
Also interesting is this 350mm f/4.5 lens: