Boeing could simply rebrand the plane. Take ‘MAX’ out of the name, call it a 737-8. I think most people have absolutely no idea what model of plane they’re flying on anyway.
That is a despicable, and dishonest thing to do, and there are people who are more than happy to act as repeaters to make sure people know Boeing's NewPlane (TM) is just a rebrand of the MAX, with a healthy dose of "this is how stupid Boeing thought you were."