That is a definite possibily. Fury is not much of a gym rat and doesn't really seem to enjoy boxing. I can imagine something else that could catch his imagination and feed his ego would be welcomed by him.
Fury has already been considering retirement and is getting offers outside of boxing that can make him good money and give him the spotlight. I’d do the movies if I was him tbh
If Fury starts doing movies his career will be finished. Every fighter that starts doing movies has a career drop off everytime. De La Hoya is a great example of this, Holyfield was the same thing (he did taco bell commercials), and Rhonda Rousy (she did expendables ironically). Either hes a fighter or an actor it cant be both.
Thats because he has alot of energy almost all the time. He also appears very different from time to time.
Fury has said numerous times that first and foremost he is a fighter so I can’t see him taking any parts in any films until he retires. Fury only probably has a couple of years left maximum before he retires and will not allow himself any distractions or to lose focus like filming would do .