Litebulbs
It doesn t matter if the current results are now 400M better than forecast. If the damage done by Bassa was calculated at say 200M, then the result should now have been 600M better than forecast.
Fact remains that BA has accumulated such deficits (pensions et all) they cannot afford to not reclaim unnecessary losses.
So I am sure if they feel wronged by Bassa, and if they think some money could be recovered by suing they will.
From a business point of view they should