Got it confirmed again from an insider
The M5 will be shown,
but as a "showcar" as I've been told earlier. So the exteriour will be finished but not a complete car. Which means I will go to Geneva to see it!
We're looking at a Paris Salon release in September.
This is inline with what a "certain female taxidrive on the Nürburgring said too" that it is some development left and it would probably not be completely finished until Geneva.
At least we're lucky we don't have to wait as long as we did between the regular E39 and the M5 launch were BMW said initially "M5 isn't needed, the 540i is enough with as much HP as the first generation M5".
I'm looking forward for March!