The former Dally M medal winner and NRL championship winner with the Roosters in 2013, who played 195 NRL games, leaves the Warriors on Thursday to return to Auckland to beat the closure of the trans-Tasman travel bubble.
If he didn't return then, it could have been late November before he could get back and find an available quarantine facility.
Tuivasa-Sheck was expected to be available for the last three or four Bunnings NPC games under his original plan but now will have the full campaign of training and playing to make his bid for consideration for the All Blacks tour to Washington and Europe.
His two-year contract with the Blues and New Zealand Rugby starts on November 1.
Tuivasa-Sheck told a press conference on Monday that he discussed his plan with Warriors chief executive Cameron George and coach Nathan Brown on Sunday.
George said that after leading the club through some of its toughest times, releasing him was one way they could repay him for his efforts.
"There are no problems with ourselves and Roger, it's about us finding the best solution during a very challenging time," George said.
Tuivasa-Sheck said: "I hope the fans saw me as somebody who put it all out there on the field, and tried his best every time. [If they do] I'll be happy with that."