Well, there'll be a lot less billionaires pretty quickly, from there it's gonna be a lot of references to star trek, doctor who, dead philosophers and general southernisms.
lol .... aliens arrive in 1960s era London police boxes to try to not alarm us as they make first contact
Aliens first message: ... I say my good man, it's quite a coincidence to find you in this part of the galaxy. I feel pecked by a hundred chickens, fuller than a tick on a big dog and fine as frog hair and not half as slick to greet you on this fair morning under god's blue sky.