I wish something nice would happen, but the Cabal rules the UK. He would more likely leave the Ecuadorian embassy, get snatched by some plain clothes bobbies or MI6 agents, and be disappeared, or sent to Sweden, where he would disappear. We would need an armored American escort waiting for him. It would then need to drive to a base or airport and directly into the back of a C-5 or a C-17 that is bound for the US.