Board Thread:General Discussion/@comment-4821842-20141110162131/@comment-24674051-20141110173528

I think she does remember, and I think that the King knew as well. They had just visited with Rumple and were on their way back to Arendelle when the storm occurred that sank the ship. Assuming that she had not remembered earlier (such as when Elsa was given the gloves), something that occurred with Rumple could have restored her memories.