It was an uphill battle for him to convince Canadians to stick with his Liberals after falling short of high expectations set in his 2015 landslide win.
Oh Ei Sun says any comeback by his former boss would depend on a good PR campaign.
Law minister Wan Junaidi Tuanku Jaafar says this is in line with the Kuching High Court's order last week.
Duterte, who was elected to the top job in 2016, is barred under the constitution from seeking another term.
While the state election has been delayed by a six-month emergency declaration, preparations must still be made for the possibility of pandemic polls.
Changing the pension system is divisive and could risk losing Macron the presidential election next year.