Wales avoided a repeat of 2015's pre-Rugby World Cup injury problems as Ireland won 19-10 in Dublin on Saturday to take the No.1 ranking.
Michael Cheika's Wallabies head into the Rugby World Cup with no new injury concerns after getting through unscathed against Samoa.
Eddie Jones does not expect to have Mako Vunipola available until England face Argentina or France in the Rugby World Cup pool stage.
With New Zealand leading Tonga 92-0, Steve Hansen opted to save Ryan Crotty and play the last 15 minutes a man light.
The All Blacks fell just short of 100 points in a merciless display in Hamilton, where New Zealand scored 14 tries on Saturday.
Captain Owen Farrell converted all four of England's tries and also kicked three penalties as his side eased past Italy on Friday.
One of the best wings in South African rugby history, World Cup winner Chester Williams died on Friday.
Japan were unable to repeat their shock 2015 Rugby World Cup success over South Africa, largely due to Makazole Mapimpi's hat-trick.
Ireland have been boosted by the returns of Johnny Sexton, Conor Murray, Keith Earls and Robbie Henshaw for their meeting with Wales.
Though he is not in the Rugby World Cup squad, Joe Marchant will start at centre against Italy in England's final warm-up game.
Hooker Stuart McInally has been selected to captain Scotland in Japan, though Huw Jones was the shock absentee from the squad list.
Pieter-Steph du Toit will make his 50th appearance for South Africa against Japan while Siya Kolisi will captain a strong team.
England have beaten Wales and Ireland of late, prompting Brian O'Driscoll to identify the 2003 Rugby World Cup champions as "a huge threat".
Warren Gatland has named his 31-man Wales squad for the Rugby World Cup, with Rob Evans and Samson Lee surprise omissions.
Scotland earned their first away Test win for 14 months against Georgia, with Rory Hutchinson impressing on his full debut.
Cory Hill is struggling with a leg fracture on the eve of Wales' Rugby World Cup squad announcement.