The Fijian Drua and Moana Pasifika were announced in November as New Zealand Rugby's preferred partners to join an expanded 12-team competition in 2022, subject to meeting a range of conditions.
FRU Chair, Conway Beg, said they need to demonstrate that a Super Rugby franchise in Fiji will be financially sustainable.
"We have to get the capital in place. Otherwise we won't be able to make the dream a reality."