The withdrawn AF Concordes would have supplied years of spares for BA's aircraft. If Airbus would have released the specs and rights, some other component manufacturers could have carried on with spares at a price. Ditto, RR, if they weren't willing to support the Olympus powerplants. And rotables are called rotables for a reason.
Speedbird is a venerable call sign and should be continued. Afterall, they are still as speedy as anyone else, even if they've just made the biggest mistake in their history.
Would a Rolls Royce be quite right without the Spirit of Ecstasy on top of the rad?