As a relative newcomer to C4d - using it mostly for illustrations - I’m surprised that rendering is not better in R23. I felt an urgent need to get an external renderer as I got started. So, for me, integration of Redshift would be very welcome. (Even though I’m more than happy with Corona).
I really like the dynamic placement stuff in S24 (haven’t tried them yet though) so more of that would be cool.
And following the recent discussions here, I would say C4d is in dire need of an “official” plugin store. But that’s probably not Maxon’s job. How about Core4d - could a simple web shop for plugins be set up here to help small developers reach out?