Leica 50-200mm lens at BHphoto, Adorama, Amazon, Panasonic.
There is long time to wait before the new 50-200mm will be in Stock. In the meantime enjoy this hands-on video from Newsshooter:
Panasonic Leica DG Vario-Elmarit 50-200mm F2.8-4 ASPH – Newsshooter at CP+ 2018 from Newsshooter on Vimeo.