Looks nice with S5, 355g and EURO 600. Hope it is not too late for Panasonic. The post says a 70-300mm telephoto zoom lens is also under development.

https://www.panasonic.com/uk/corporate/news/articles/panasonic-introduces-new-compact-lightweight-lumix-s-85mm-f1-8-lens-for-its-full-frame-s-series-cameras.html