I've suddenly noticed a slight theme running through these comics.
Shy Fluttershy, who hates being the centre of attention = Vanished
Rarity, everyone jokes she's made of Marshmallow = Melted in the sun
Applejack & Rainbow Dash, both competitive ponies as stubborn and bullheaded as each other = Fusion!

I've blown my own mind.
Also; I dread to think what will happen to Pinkie