Partly i agree what you said here(not about Hak, can't do that to my bro). Zeno death is possible at the end and I belive he will find some kind of happiness in this, since is like you he lived for years. About other dragons im not sure if they loose their Powers and live normalna, I may be wrong but if there is already "born" new dragon then probably they will die, and I think there was in one chapter that one of the dragon said there was born baby with dragons Blood. About prophecy I think sword is Soowon and I think he filled part of that prophecy, I mean he changed a country compared to how it was when Il was a King, so lets Say he create all of this for Yona knowing he will die and she will take the throne back. Shield must to be Hak here it's nothing to Say he did his job like a real Shield protecting the Princess. Oh that thing you said about Hak that he has a death on him, i think it was the time when he wanted to kill Soowon and that Zeno's meant when he said those words. Honestly since they came to this castle and nów that we See story of Yuhon and yonhi story it reminds me a Little of a Game of Throne, I know it sound ridiculous but if use are imagination and assume that Hak is Yuhon son so he would have rights to the throne, Yona on the other hand remind me of Danny. Yona can die in the fight or protecting someone like for example Hak and it would be that Shield from prophecy. Well thats all for now I know some part of what I said sound crazy.
Hak dying is highly unlikely, and very uncharacteristic of the mangaka considering how all he other works ended. Moreover, everyone seems to make assumptions without considering that this is still a shoujo manga, where the ML dying is already unlikely but considering what magazine it’s being published in makes it that much more unlikely. The mangaka still has to get the ok from the publisher, and killing Hak off when he’s so incredibly loved in Japan would really lower her favorability among fans, thus lowering sales, and that’s something that no publisher wants. They could probably kill off any other character, but not ML and FL
Okay, obviously Son-Won is going to die by the end, he has to. he's the main antagonist and has the fatal bloodline death thingy. Yona is practically destined to take the throne UNLESS she decides to go all America on us and make it a republic/democracy.
I hate to be that person, but Hak might actually die. I KNOW. I love him the most too, he's my bae and I will probably murder the author if he dies. But it seems inevitable and being built up by this point--at the beginning, someone (Zeno?) comments that Hak has the "scent of death" on him. Hak is always the target of attacks, and he's been able to survive most incidents due to his will, but how long will he last? I really want a happy ending for him, and it is certainly possible, but according to the thematic element of the story, Hak might either die in battle, like he should, or become a consort to the princess/personal guard.
the one death I will support is Zeno's. I believe the temple of Hiryuu has the power to take Zeno's immortality away, and at the end of the story, the four dragons will cease to exist and these four will live the rest of their lives without their powers. Zeno has been living for two thousand years, according to the story, it would only be correct to give him death as an end to his character arc. He deserves to be reunited with Kaya (was that her name?)
The four dragons might die in the final battle. It could happen, but I have no evidence to support it.
Though this is a death predictions comment, I would like to add that Yona might be the last reincarnation of Hiryuu, the first and the last. It seems like Hiryuu came down again to do something (SWORD AND THE SHIELD SOMEBODY) and leave with the four dragons with him. It would be fitting if this was the end to the cycle of the dragons and all the pain each dragon and predecessor has had to endure.
I know someone's going to say "Yona could die" and I would like to agree with you. She could, but it wouldn't be in character of the story. Yona is Hiryuu. She has to live, and she's the main protagonist. She CANNOT die. And I'm not saying this out of my love for her, which could fill an ocean, but because of the question, who would rule? Yona dying would be a miserable death, though it COULD happen.
Can anyone confirm what the next part of the prophecy is? What about the sword and the shield? Ever since Iksoo said it'll need more time to appear, they dropped the prophecy. And what about Yona's powers? Will she have to harness that for the final battle?