Hi lei17!
When did you send in your medicals?? It about 2 months before i heard anything but if you read other peoples posts some heard back after a week...id just wait. They will eventually get back to you.
As for changing the departure date, id did. And once again if you read more of the posts on this forum youll notice that others had their dates changed by Emirates.
Its def. a time consuming matter but its well worth the wait.
As for what else is there...once yourve completed your medicals its simply a waiting game. If your approved the next thing is your contract etc.
Good LucK and let us know how you do!!