UPDATE by @Dan_Passe (Nissan Communications Manager):
Source: https://www.nissanzclub.com/forum/threads/new-york-auto-show-officially-canceled-for-2021.354/post-7389
"17th remains a go - please tune in virtually @ www.nissanusa.com/live - I will try to answer additional questions as they come...
if my research is correct, the new Z will have the same engine as the Infinti Q50/60 Red Sport (VR30), and the transmission carried over from the 370Z (manual), and for the auto, a 9-speed that is similar to the one in the mercedes.
Does anyone have knowledge of how these VR30 engines are...