https://www.youtube.com/watch?v=QL7sER7ufPk
On February 7 Sigma will announce the new 50mm f/1.4 L-mount lens. Price is rumored to be something like $850.
https://www.youtube.com/watch?v=fCvFtT5Zgcg
The Panasonic S5II features a curious new stabilization mode named "walk mode" See in this video how it performs against the Sony A7IV!