With Yon-hi going through an existential crisis about her and her bloodline's existence--their purpose, now I'm seeing Soo-won not only taking the throne for his father's sake but also to prove something for his mother's sake? I feel like I'm getting a clearer picture of Soo-won not wanting the help of gods or anything that has to do with the prophecy. For his father, he's giving revenge and for his mother, he's proving that they have purpose.
Technically, I guess, Soo-won has blood of the dragons, and he must've felt it too, the connection to Hiryuu as his mother felt when she first saw Yona and the same feeling all the others felt in meeting her. Which I guess has given Soo-won more of a complex to Yona or maybe just to fate, gods, and prophecy in general. Which I think gives some sort of parallel to all the generations of the dragons and their own existential crisis.
Still the question is why was Yona born or I guess reborn lol, I recall Zeno was wondering why'd Hiryuu had come back a few chapters back. The "feeling" that Kashi when she was saved by Il like a "red light" she said.