If everything goes well for DC cinematic universe, Jason Momoa will be playing the role of Aquaman for a very long time (about 10 years). His next appearance as Aquaman would be in Justice League: Part One (2017). Character of Aquaman displays superhuman strength, stamina, and endurance, and playing him would require being in top shape.
Joson Momoa is evidently taking the role seriously and is hitting the gym hard. Watch the video he shared on instagram.
Want to see how rest of the Justice League is doing? Well, Ezra Miller has bulked up for The Flash.
@wfmft @hotlantayoga what the fuck 10 to 1 then 1 to 10 And that's after 2 hrs of back. Getting ready for JL. Enjoy the Movie everyone. Buy the ticket take the ride. Hahahahahahah it's along ride I'm in for 10 yrs. blessed stoked. And proud of my friends. It's a big beautiful DC world. Enjoy. aloha ALI'I