If they give MOTUC Mermista 2 detachable legs and waist parts (1 human, 1 fish tail), which is probably the way they'll choose, they REALLY need to pay attention to THIS important detail : the lower part MUST attach properly to the torso, and not be loose like my poor King Hssss waist attachment !

I think Mermista would be a cool "surprise character" to reveal, because she clearly seems to be quite a challenge.

As of now (September 10th 2011), she has not been trademarked, though.