Another storyline could involve a disease or a curse. Maybe Luffy contracts a rare and incurable illness during his adventures. As he gets weaker, he has to come to terms with his approaching death, and his crew struggles to find a cure while also dealing with the emotional turmoil.
Zoro would be deeply affected. He has sworn to follow Luffy and his death would be a huge blow. He might feel like he failed in his duty to protect the captain. He would likely become more withdrawn at first, but then focus on getting stronger to avenge Luffy if there was someone to blame for his death.
Comics aren't dying in 2020. Digital platforms have expanded their reach, and indie comics are thriving. There's also a growing interest in graphic novels. So, they're far from over.
I don't believe the novel is dying. While other forms of entertainment have emerged, novels offer a depth and intimacy of storytelling that remains appealing. They also have a long history and a dedicated fan base that keeps the genre alive.
It's not a straightforward yes or no. The comic industry has faced challenges, but there are also new creators and innovative ideas keeping it alive. Digital platforms have opened up new opportunities for distribution and reach.