In all seriousness if its really a boy i think it will be Peter.
Meh...I don't really like the name Peter to be honest (though I'm sure my opinion of a name will be of no consideration to Roger & Mirka
). I think they should go with a name that isn't a "typically" English name, something more Swiss/German style like a Johannes or something...or go with something like Leo (if the kid is in fact a Leo...and a boy
Btw, am I the only one who thinks it'll be a girl now since almost everyone is expecting it to be a boy & there's been various unconfirmed reports of it being a boy etc, I can just see the kid being a girl now when everyone, who isn't in the know like Roger & Mirka etc, was expecting a boy.