The new TTartisan 28mm f/5.6 lens for Leica M-mount received a large number of pre-orders and the current estimated shipping time is already February 2022. The lens is available for pre-order at the TTartisna Online Store (international shipping available):
Update - TTartisan 28mm f/5.6 lens is still available for pre-order at B&H Photo and Pergear.
Additional information on the TTartisan 28mm f/5.6 lens can be found here:
The new TTartisan 28mm f/5.6 lens for Leica M-mount is now available for pre-order
More pictures of the TTartisan 28mm f/5.6 lens:
Here is the first review of the TTartisan 28mm f/5.6 lens: