Anthony Bouthier has extended his stay with Montpellier a year after joining the Top 14 club.
Ben Smith says he will be no more than a spectator when the Super Rugby Aotearoa gets under way next month.
European Professional Club Rugby will make "every effort" to finish this season while also planning for the future.
Kurtley Beale and Luke Jones are returning to Europe to join top 14 heavyweights Racing 92 next year.
Benjamin Fall has left Montpellier after six years with the club and is unsure where he will be playing next season.
Former France wing Vincent Clerc is expecting next season to be a thriller after the 2019-20 campaign was cut short.
Due to the coronavirus pandemic, the Top 14 is to be abandoned for 2019-20 with continental rugby postponed for four months.
French Rugby Federation president Bernard Laporte said the sport is suspended indefinitely as coronavirus spreads throughout the country.
Nemani Nadolo will be in Leicester Tigers colours next season after the Premiership club lured the former Fiji powerhouse from Montpellier.
Ben Botica scored two second-half penalties to help Bordeaux Begles to a 26-24 victory in a tightly contested match against Castres.