As I said in my previous post, I just crossed my finger, updated the AudioEngine and submitted my game to the Google Play store.
So far, I have no crash and my game has been tested on more than 70 different devices, and more than 15 different android version, from 4.0.4 to 7.1.1.
I only had very good reviews so I guess we can say your patch is a success 
Good job!
Edit: In fact I just received a report with a bunch of crashes…
Here si the exception description:
ConcurrentModificationException (@HashMap$HashIterator:remove:810) {main}
I am not sure, could this be related to the AudioEngine ?
I saw this related post as well:
http://discuss.cocos2d-x.org/t/android-cocos2dxsound-has-concurrentmodificationexception/10461/8