-Looks like Candelle was raped by a Celestial Dragon. If this is the case, Shuri's eyes are most likely from the Celestial Dragon's genetics. Shuri is related to Mihawk, I believe. Tragic.
-Brook is the realest, damn. His King declares war against the WG, and he just goes, "Understood," turns and walks off to prepare. Bruh. Brook is the best.
-Love the music focus here. Enhances the tragedy and makes you really want to see Brook kick the God's Knights asses in the present day.
-"If we finally snap for real, that shakin' is all you'll feel." IMO, this foreshadows Brook's Devil Fruit Awakening making the world rumble/shake like Luffy and Imu do through music. When Gear 5 or Full-Form Imu descend, everything starts bumping.
Brook has RARELY gotten truly angry in this series, and when he does, he's ferocious. Once Brook puts two and two together, and realizes Imu and the God's Knights are the ones who destroyed Esperia, and stole Shuri's life, he's going to POP OFF SO HARD. Awakening happens when your body and mind are in tune.
Brook's Awakening after this flashback.
-Big question left: how do we save Shuri from Imu? I think we already know.
In Egghead, Luffy's scars flew off his body. Scars, like the Seal/Mark of the Abyss, are inherently part of your skin; if Luffy can remove scars, why not the Mark?
When Loki killed Harald, IMO, what he truly needed to destroy was the Depths Covenant Imu had given Harald. This is why Harald died: Loki + Ragnir destroyed the Covenant Seal upon him.
So, what happens, if you destroy the Seal, after separating it from them?
Luffy pulls the Covenant Mark off.
Loki and Ragnir destroy it.
There ya go. Free Shuri.
However, at this point, all the of the signs pointing to Brook's Awakening make me believe this man is going to pop off, too.
While at first I believed Shuri would let the Straw Hats sail the Abyss, she needs her Mark to do so. Once her Mark of the Covenant is gone, she can't use the Abyss. BUT, I've been pushing Blackbeard using the Abyss with the Yami Yami no Mi.
I believe Davy Jones Locker is in the Abyss, and Davy Jones was thrown down there by Imu himself.
And many are speculating that Brook, due to his similarities to Teach, is a Davy.
Yami Yami no Mi... Yomi Yomi no Mi...
Brook's Awakening will allow him to sail the Abyss. Possible he's the boatman, Charon. Would fit him well.
We should see Brook's music free Shuri from the ice, and help her regain her sense of self. Then, Imu will try to kill her, like he did Saturn. To save her, Luffy pulls the Covenant Mark off, and Loki and Ragnir destroy it the way they did Harald and his Mark.
Shuri is free to join the Crew, and make Zoro go in the correct direction using her arrows.
BROOK'S AWAKENING IS COMING, YOHOHOHOHOHO