BA has never expressed any interest in the A380 that I know of... though I wouldnt doubt it considering that their two archrivals have cemented solid orders.
I noticed BA was getting rid of their old GE90 772s and replacing them with RR... I figured perhaps they were doing so in preparation for the more powerful GE90s on the LR version

I hope Boeing doesnt cancel this aircraft, so far only one airline has ordered. Of course, considering only two ordered the 764, maybe they'll still go forward with it.
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Faire du ciel le plus bel endroit de la terre c'est impossible sans Concorde!
~ConcordeBoy