I had the real displeasure of arriving back with KLM into T3 at the weekend after a re-routing (shudder).
It got me thinking. T3 is over-crowded, T2 is not so after the sad loss of Monarch, would now be the time to transfer Air France and KLM from T3 to T2? They would also be in the same terminal as Virgin in whom they have recently invested.
This would free up some useful space at T3.
From my own perspective, it would also mean that both AF and KLM would come off my personal 'Avoid List' as the T3 experience is so bad that I try to not book flights going through it (although domestic is generally not too bad in fairness).