Given that the first assessment day is only 12 days away now, I do find it odd that AL haven't contacted everyone with an outcome (despite the volume of applications). If one were to be invited to the assessment centre on the 16th July, that is a very short turnaround for booking flights, accommodation and getting the time off work (unless you pull a sickie).
Haven't heard back yet, still holding onto some hope. There will be more opportunities though!