You are hoping, if you want worldwide heathrow on a permanent basis. At the very best you'd be offered it on a six month basis with the offer of a single fleet LGW offered at the end of it. Your best bet is eurofleet LHR then put your name on the transfer list . If you get in before November this year you will be able to put your name on the tranfer list and might make it to worldwide within 2 1/2 - 3 years if thats what you want.