More than half of Tonga's players at this World Cup were representing the nation at their first tournament. Only Jason Taumalolo and Tui Lolohea remain from the 2017 squad.
Taumalolo chose Tonga over New Zealand in 2017 and will be 37 when the 2030 World Cup begins. His legacy is expected to keep Tonga competitive after he retires.
Kristian Woolf began coaching Tonga in 2014 and has also coached the Dolphins in the NRL for the past two seasons while managing his Tongan commitments.
Tonga's 34-10 semi-final loss to New Zealand in Newcastle marked its third World Cup campaign without reaching a final. Woolf did not say whether he would coach the team in 2030.
"I've loved this camp, it's been an outstanding group, outstanding staff, and I've loved everything they've done," said Woolf.
"I've really enjoyed being back in camp and back around the players in particular. So, I'll figure that out in time."
"I think with the core group players that we have right now they can really make their mark in the international scene," said Taumalolo.
He added, "We've got players that could have easily played for New Zealand or Australia, and they opted to play for the little nation in Tonga and make the people proud."