I was also distracted by his outfit and the general amount of SPECTACLE AND SPARKLE going on, but I believe the gist of his speech was: "UGHHH, these ghost parents just WON'T SHUT UP about their son's misery ughhhhh, okay FINE here is a cryptic prophecy about the happiness of Britain and also Posthumus Leonidas to remind the sad ghost parents that they're in a comedy and he's gonna get an HEA and also rah rah Britain, peace out"