Reigning world champion Max Verstappen has one of the longest contracts in Formula 1. And yet, uncertainty persists over his Red Bull future. Verstappen’s deal runs until 2028, just like McLaren driver Lando Norris after the Briton signed an extension over the winter. Only Charles Leclerc, pledged to Ferrari until 2029, has made a longer commitment. On the surface, the Dutchman has little reason to leave Red Bull. They’ve provided him with championship-winning cars in each of the last three seasons, including the most dominant machinery in F1 history last year. Verstappen looks on course to co…