Not sure how a LGW base would work. I presume some kind of slot swap would be on the cards, with bmi using MAN 330's to operate the Caribbean and Orlando routes? Reduction in routes to Mainland Europe and transfer of popular middle east near asian routes - with better connections to *hubs. Maybe a 20 strong fleet.
LGW -
Tel Aviv/Jersey/Zurich/Geneva/Istanbul/Dusseldorf/Stockholm/Warsaw/Cairo/Amman/Moscow/Beirut/Sharm/Banjul?
Antigua/St. Lucia/Grenada/Barbados/Tobago/Orlando