Malakai Fekitoa will join Lima Sopoaga and Brad Shields at Wasps next season.
The former Highlanders and All Blacks midfielder has endured a difficult time since shifting to Toulon in 2017.
Out of contention in Europe and sitting 11th in the Top 14 with five wins from 14 matches, the French club and its demanded owner Mourad Boudjellal continue to struggle to recapture former glory.
Fekitoa's imminent move to England's Premiership Rugby has long been rumoured, and Wasps today confirmed he will join them from 2019/2020.
Fekitoa, who turns 27 in May and won the 2015 World Cup with the All Blacks, previously told the Herald of his desire to return home and add to his 24 tests.