

Writing
of reading
53
Read books
It will be exclusive to him.
If you are still reading, then you should have your answer by now.
Well, this is my original novel and not a translation, so you won't find any raws for it. I am assuming you are asking for the raws because you like the story. If you gave it a one-star review thinking it was just a translation, could you please change your rating?
He is waiting for Madara and even Kaguya to revive so that he can show the world the threat the Otsutsuki clan poses and unite everyone, recreating the same effect that occurred after the Fourth Shinobi War. Shanks is not a coward; I would never portray him as such, as I myself am a big fan of his.
His mastery of Observation Haki will naturally increase over time. While he already possesses the first four sub types listed, Issho will still need to dedicate time to truly mastering them. For instance, as mentioned in one of the previous chapters, he was able to sense complicated emotions, but not entirely clearly because he could only grasp the general gist of them. As for Future Sight, he will awaken this ability much later in the story, given that it is a transcendent level skill. Additionally, his Observation Haki is in radius.