Aubameyang's Arsenal contract runs until 2021. He could still pack his bags this summer. 

In fact, according to the British press, he tried to leave in January. The 'Daily Mail' reports that Chelsea were very close to signing him. 

Both parties negotiated in January and Chelsea were well on their way to signing him. But then, something happened. 

Aubameyang did not settle for what Chelsea were offering him and demanded a very large salary. If Chelsea had accepted his demands, the Gabonese would have been the club's best paid player in history. 

Those demands did not go down well with Chelsea and at Stamford Bridge they decided to end their pursuit of him. Aubameyang's chances of going to Chelsea went up in smoke.