The wait for A&E is rarely long anymore, and they are not necessarily there all day. Today, for instance, the app says Anna from 1:00 - 9:30pm, and Elsa from 8:00 - 9:30 pm. So if you want to see both, you would need to go in the afternoon, not first thing in the morning. I would check the app when you get there. And honestly, I would do rides first and meet them later since the line doesn't tend to be as long as it used to be when they first appeared. Moana has the long wait time now.