Trivia: Mark Hamill received $1 million for his role as Luke Skywalker, despite the fact that he does not appear until the very end of the film and has no dialogue at all.
Trivia: Although Harrison Ford is first billed, he does not appear until 38 minutes into the film.
Trivia: Lor San Tekka (Max von Sydow's character at the start) is never referred to by name.
Answer: Any answer would be conjecture - best just watch the next movie.