I think that since the title is called Apple Red as Blood that this is the episode where the Queen, as an old woman, gives the poisoned apple to Snow and she goes into the cursed sleep.
I think this is highly probable. I thought when the title for “The Fruit of the Poisonous Tree” was released, that episode was going to be about the poisoned apple but it really wasn’t.
I like your idea that Season 2 could be about the year or so between the marriage and Emma being born, but they may still go far into the past as well. There still seems to be a lot of in between story to tell, but i am not sure how much of it that we will see.