New Zealand Rugby have confirmed the 2021 competition will run with just the same five New Zealand teams as this year, with the addition of a one-off final.
The NZR chair, Brent Impey, said none of the Pacific team bids were both competitive on the field and financially sustainable off the field.
"We are not in a position financially - we're running multi-million dollar losses - to subsidise anything, " he said.
"If we've got money it needs to go into our community, it needs to go into our provinces, so I'm sorry we do not have the money to compromise."