New Zealand have been handed a boost after Richie Mo'unga committed his future to the All Blacks.
Israel Folau is soon to learn his fate from Rugby Australia and Kurtley Beale has concerns for his Waratahs team-mate.
Jack Singleton, who came through Saracens' academy, is to return to Allianz Park next season on a three-year deal.
Anthony Watson has not played since the 2018 Six Nations but will finally return to the Bath team this weekend.
Lood de Jager is to leave the Bulls and join Premiership side Sale Sharks, where the South Africa lock has signed a three-year contract.
Perhaps unsurprisingly, the five nominees for the European Player of the Year all turn out for Champions Cup finalists Leinster or Saracens.
There will be two Sextons in the Pro14 next season after Johnny's younger brother Jerry agreed to join Southern Kings from Jersey Reds.
David Strettle will bring his rugby career to an end next month after 17 years as a professional.
Rugby Australia will hold a weekend hearing to determine whether its decision to terminate Israel Folau's contract can be upheld.
After Billy Vunipola was confronted by a fan in a Munster shirt on Saturday, the Irish province distanced themselves from the supporter.
Leinster remain on course to retain their European Champions Cup crown, but Garry Ringrose believes Saracens will be tough final opponents.
After the controversy surrounding his support for Israel Folau, Billy Vunipola declared himself "grateful" to be playing for Saracens.
Michael Rhodes and Billy Vunipola scored tries but Owen Farrell's 22 points from the tee were key for Saracens against Munster.
Franck Azema will become the longest-serving coach in Clermont Auvergne's history if he sees out a new deal until 2023.
Leinster will be led by the fit-again Johnny Sexton when they take on Toulouse in Sunday's European Champions Cup semi-final.
England international Ben Te'o is one of eight players who will be leaving Sixways at the end of the Premiership season.