Having Miraculous London serve as an Season 5 epilogue is brilliant.
It takes a cue from "Destruction" and "Miraculous: Paris" by packaging a story within the timeline of another episode's time skip. Additionally, it will be able to show Adrien dealing with the fallout of his father's demise and not knowing his dark secret. Does he blame himself for not transforming when he could?
Most likely it will also show Marinette's anguish over getting Gabriel to pivot his wish but being unable to keep him from giving Nathelie his life. A final story that will build the foundation for Season 6. I'm guessing that Double Rose may help her emotionally, hinting at her own series of adventures.
Given Bunnix and a time based Akuma seem to be involved, there might be a story of the temptation to change the past despite the consquences.









