Hello there !
Having been playing Frost for most of my time in Pandaria (boy, did the spec come a long way since Vanilla), I've grown quite fond of my bubbly friend ! I am also envious of Shamans and their awesome Primal Elementals. You guess where I'm headed with that...
What about a Primal Water Elemental of some sort ? Something like those !
I'm mainly thinking about a cosmetic change in the way of a minor glyph. Or even, let's be greedy, one for each elemental model, such as the Pandaria ones ! It also occurred to me that it could be tied into a future spell or talent for Frost à la Primal Elementalist/Grimoire of Supremacy (Water Jet anyone ?), but that would mean not before another expansion pack...
I'm sure the idea has already been floated around at some point; do we know whether something in that vein is officially being considered ? Asking directly through Twitter seems to be in vogue, might be worth a try.
For watery goodness !