RNZ reports the Manu finished in ninth place last season, their first under new coach Damian McGrath.
The squad reached the quarter finals or better at four of ten tournaments, highlighted by victory in the penultimate round in Paris.
Captain Falemiga Selesele was named in the Series Dream Team while Phoenix Hunapo-Nofoa was nominated for Rookie of the Year.
But Damian McGrath said both players are unlikely to return.