When i went to the heathrow assesment day in Feb there were nearly 80 of us at the start. The recruiters were quite surprised by how many had actually turned up so i would expect that given AD are being cancelled etc there will be even more people at the 4th May AD. Don't worry though our AD was super organised and everyone was given as much attention as the other person. There were 26 of us left for the final interview so they will take through as many as there are that make the grade. Good Luck
