If I use Here to Help to play Akshan in reaction to Dazzling Aurora's End of Round trigger and steal Aurora, does the trigger still resolve?

Ruling: Yes, the Aurora trigger will still resolve normally. Once a triggered ability is on the chain/stack, removing or stealing the source unit does not prevent the trigger from resolving.

Nuances:

• This is different from when a unit dies at the same time as its trigger condition (like Viktor dying to Unchecked Power while other units die) - in that case, the trigger never goes on the stack
• Once a trigger is on the stack, it will resolve unless specifically countered by a card effect
• The trigger does not check the game state of the source card when resolving, only when initially triggering