On that Alien planet the fact that Damian was willing to listen to Jon and take his ideas. The fact that they are working as a team the fact that we and others have now in panel consistent change Damian being more chatty and more open are all down to Jon outside of Grayson and Bruce no one else had changed him more.
Jumping on a bouncy castle one issue and then reverting back to himself really is nothing but I will give you Maya.