I think he's off in the summer. Can't see how we would convince him to stay after having him watching our recent performances from the stands. He admitted that he was almost gone last year.
Like @supermon said, the rebuild job is just too big and would take up a large part of his career. He'll hit his peak in a year or two. A player of his calibre will ultimately want to win trophies and test himself against the likes of Haaland and Mbappé in the CL.
£150m in the bag which should be reinvested in 3 quality players (RW, LW, AM).
A top 8 finish might still change this but seems highly unlikely now.