Loving the game so far, my biggest complaint is pretty much that Freeplay is a luck based proc fest. Having some kind of icons, especially during these events is going to be critical.
No one is going to want to fly around randomly hoping to experience the event. Sometimes people might not have time and just want to do the event and fly around a bit and bounce.
Just my 0.02. and I'm loving the game. Looking forward to the future patches!