They could be alive or dead, both have potential for great episodes. Someone on another forum posited that the episode could begin with AJ eagerly waiting for their arrival... and they never show up. Turns out prevented them from making it, but AJ doesn't know that. She over the course of the episode, she goes from excited, to anxious, to outright resentful, before some well timed intervention gets her to focus on the good times and realize that sometimes your parents can't keep their promises, but they still love you.
IIRC Lauren wanted to address AJ's parents at one point.
Eh... I dunno about that. Seem cliched for this show. The moral is rarely done, but I've seen the plot a lot as I recall.
I'm just sick off Dead Parents fanon. It was used for other ponies too, like Rarity who had dead parents in Past Sins.
And show have habit to not introduce or even bring again any family members like Shining Armor. And all those birthdays without any family members invited.
Because he know I'm going to go out in this plane and I'm going to remove one of His creations from His universe.
Most common fanon is that AJ's hat was from her parents.
I like to think that the Apple parents are alive and well, and living on another farm. They know that Sweet Apple Acres is in very capable hooves.
Pronounced "Sid-zellia"
Why would they be on another farm? Was Sweet Apple Acres just an offshoot of the one that they're running now? If anyone would break off to start their own thing, it's usually the children, not the parents.
You can't expect me to be fine.
I don't expect you to care.
My headcanon was not popular here when I posted but ... I believe AJ is AB biological mother.