Don't forget though that Lufty have in excess of 80% of the slots at Frankfurt and AirFrance/KLM enjoy a similar position at both CDG and AMS.
I would be fairly certain that the BA lawyers would be quick to quote those statistics whilst adding that a percentage of slots would be sold to appease the Monopolies commission. Obviously those slots to be sold would be duplicate timings with the newly formed BA/Iberia/LH alliance and hence would not be needed.
Gives a few things to think about!