The sequence in which the orders are shipped is quite strange and I think it is very much depending on market and U.S. market seems to be the first priority one.
I live in Singapore so not too far to Shenzhen in China, I ordered on April 9 a P3P with extra battery and as of today, I did not receive any shipping notice but only the following email from DJI online store customer service after inquiring the status of my order:
"Thank you for contacting DJI Store.
We are sorry for keep you waiting .We are trying our best to process the shipment as soon as possible. Thank you so much for your kindly understanding.
For the Phantom 3 with extra batteries, it will start shipping around the middle of May.
Since your order shipping queue is 5866, we guess the shipping date is around later than
20th of May."
I am soon finishing 2 weeks holiday and too bad I could not have had it to capture some great memories from the sky.