John Cena has been taking more and more time off of his WWE schedule in order to do more in television and film.
The recent WWE “expansion” now only requires most talent to be at one television show per week, which will likely allow Cena to do even more away from the ring.
A larger role in Daddy’s Home 2 will certainly require time off as well, though it’s possible they’ll be able to arrange his filming schedule so that he won’t need to miss much, if any, TV.