Originally Posted by corporate-wage-slave

There is a lot to be said for waiting, just to see what happens. The cancellation means you can have a refund, as soon as you rebook you lose that flexibility and BWC ends in August as things stand. But what you can do is ask BA to simply cancel LUX-LHR legs (not sure about LHR-BRU since that's a separate ticketing code almost certainly) and even get a refund on it too. So you could just start from LHR.