The Leica event “Das Wesentliche” will take place on September 17th (next Monday) in Cologne. The only update I have for now is that Leica will introduce a new M mount adapter for R lenses. If you still have your R glass, soon you will be able to use it on the upcoming Leica M rangefinder (may not necessary be called M10). Focusing will probably be done with an optional EVF (focus peaking).