The reactions post Wano of Shanks, Garp, Mihawk, Blackbeard, Gorosei, Admirals especially Akainu and Fujitora and certain other characters are gonna be absolutely hilarious and interesting imo.
This is gonna be more game changing than Impel Down-Marineford and WCI by far. The power vacuum of Kaido and BM going down will have IMMENSE repercussions on the world and Blackbeard will truly get a raging anarchy boner.
I really can't wait to see how Shanks and Blackbeard respond to this as the 2 remaining emperors, even though Blackbeard is new to being one too ofc.
The Throne Wars Doflamingo was maniacally excited and laughing about are truly coming. This is just the beginning of the real chain reaction, consequences to come and thus Pandoras Box of chaos and world changing events.