Similarly, the early Ellery Queen novels had a nationality in them: The Roman Hat Mystery—1929 The French Powder Mystery—1930 The Dutch Shoe Mystery—1931 The Greek Coffin Mystery—1932 The Egyptian Cross Mystery—1932 The American Gun Mystery—1933 The Siamese Twin Mystery—1933 The Chinese Orange Mystery—1934 The Spanish Cape Mystery—1935
Their next novel, Halfway House was a change in how Queen was portrayed: they wanted to move on from the puzzle tales they had used previously. It was the last with the “Challenge for the Reader” gimmick and started concentrating more on character. They did suggest the title could have been The Swedish Match Mystery but clearly were giving up on the theme.
Later novels gave up on the nationality titling, so this fits the OP, too.
Sammy Davis Jr and Peter Lawford starred in Salt And Pepper — where the black guy is Salt, and the white guy is Pepper, and don’t worry, the movie will pause to explain how that’s a joke — and then they returned for One More Time, which, yes, arguably fits as a sequel title, but only in the sense that it would’ve fit all sorts of stuff as a sequel title.
Annie Get Your Gun . . . One More Time Batman Returns . . . One More Time Cry Macho . . . One More Time Déjà Vu . . . One More Time
It’s sort of like the Sidney Poitier/Bill Cosby film Let’s Do It Again (1975). You could stick that on the end of a lot of other film titles.
Let’s Do It Again isn’t really a sequel, but the three Poitier/Cosby films Uptown Saturday Night (1974), Let’s Do It Again (1975), and A Piece of the Action (1977) are, as Wikipedia puts it, viewed as a trilogy, even though the characters have different names in the three films. And it’s kinda hard to see the title of that second film as not suggesting that it’s some kind of sequel.
I guess there’s also college-age Kurt Russell’s temporary-superpower hijinks by way of invisibility serum in NOW YOU SEE HIM NOW YOU DON’T — you know, before he briefly became THE STRONGEST MAN IN THE WORLD, but after THE COMPUTER WORE TENNIS SHOES.