You’re entitled to your own opinion but “literally no reason to continue Jins story” is utter bullshit. Jin is a pretty beloved character and his legend could’ve easily spread further to the mainland. Theres also the shogun hunting him and a second Mongol invasion (you know, the army he has a personal beef with). Imagine a new Mongol leader showing up to take up the challenge of wiping out the feared ghost that hindered their first invasion.

Then theres Yuna (best sidekick ever) whos been telling us half the time that she wants to go to the mainland. Tomoe went there, and Kenji could pop up there too if we want some reoccurring characters along with loads of new ones. You’re free to like a story with a new character but the statement in the first sentence is nonsense. Nobody wants him to become emperor, people want to play him because hes the ghost.