I just read in the German news magazine "Spiegel" that Nikon has to postpone the D6 market introduction because of the Corona virus. They have trouble with their supply chain but they'l strive to release it right before Olympic Games (too important for Nikon, of course). Interesting to see if and how Canon will be affected by this crisis, in particular the introduction of the R5.
(for translation I highly recommend DeepL)
Nikon verschiebt Kamerapremiere wegen Coronavirus
Die neue D6 wollte Nikon eigentlich schon im März vorstellen, nun aber soll es Mai oder später werden. Wegen des Coronavirus fehlen dem Hersteller Bauteile für die Profikamera.
www.spiegel.de
(for translation I highly recommend DeepL)