If my Dazzling Aurora plays Akshan, Mischievous at the end of my turn, will the Dazzling Aurora I take from my opponent trigger that turn?
No. You gain control of the enemy Dazzling Aurora after its end-of-turn trigger condition has already been checked.
"At the end of your turn" refers to the Ending Step's end-of-turn point.317.1.a383.1 At that point, the enemy Dazzling Aurora is still controlled by your opponent, so its controller-relative "your turn" condition is not fulfilled.191.5.a383.2.c
Your Dazzling Aurora's end-of-turn ability plays Akshan after that point in the turn has been reached. After Akshan enters the board, his play effect is added to the chain as a pending item.383.4.a383.4.a.2 You gain control of the enemy Dazzling Aurora only when that ability later resolves.407.5
If you take control of an enemy Dazzling Aurora before the Ending Step and still control it at the end-of-turn point, it triggers normally.