This is probably another one of these things that will not happen: a new Minivan from Nissan.
The last one we had in the US was the Quest. The last year over here was 2017, which is actually not that long ago.
Nissan currently produces the Serena minivan for overseas markets. Although the “new” generation came out last year it still looks a lot like the previous one from 2016. Both versions look ghastly and would have very few takers in North America.