What's going on in China now is very impressive. From SUASNews:
It's thought at least 100 teams took part in the AVIC Cup International Unmanned Machine Innovation Contest in Beijing at the end of September. Six Teams came from the Northwestern Polytechnical University Shaanxi Province alone.
The prize money was good and the main challenge, a carrier landing difficult. Very few reports have emerged so far but there is this tantalizing video clip. Some very competent looking entries performing autonomous landings on a simulated carrier deck.