Ok, after this episode and Rarity takes Manehatten, I know what the MLP crew are doing; all of the girls will have an episode that will deal with their element and challenge it which will foreshadow them getting their Rainbow Power. That means next will be Pinkie and her laughter which will be the episode that has Weird Al.

You make too much sense to be wrong here. Someone needs to screencap your comment so that we can refer back to it when this happens.