The "gag" of the Deadpool 2 PG-13 Cut is that it's an ironically "family-friendly" version of it that is framed by Deadpool doing a riff on The Princess Bride where he's reading a book of the movie to Fred Savage as a bedtime story:
Do I think that's an idea funnier than most in the two actual Deadpool movie releases? Yes!
Will I pay to see it in the theatre at Christmas? Nooope.