Nikon just issued an official statement that they will not participate in NAB 2020 due to COVID-19:
Nikon and MRMC Will Not Participate in NAB 2020 Due to COVID-19
MELVILLE, NY – Nikon’s first priority is always the health and safety of our employees, partners and customers. As we continue to closely monitor and gauge the impact of COVID-19, Nikon Inc. and MRMC, a Nikon Group company, have made the decision not to participate in NAB 2020. We will continue to closely evaluate our travel policies, programs and activities to mitigate risk.
The Coronavirus caused many shows to be canceled (including the 2020 CP+) and caused a delay to the latest Nikon products.