Apparently the R5/R6 is now slated for Aug/Sep according to the rumors site.
My order at B&H just says back ordered, hope it's here for at least some fall color. I am sticking with my EF lens and a converter for now. I wil lbe anxious to see how well you like the 15-35.B&H still telling me that mine should ship by end of month. Really hope that holds up. Going to be a significant investment, with RF 24-105 and RF 15-35 to start. Could also see an RF 100-500 in my future, but trying to resist that one for now at least. R5 and 2 lenses will certainly be a nice retirement present