Perhaps we could use personal effects as a perment character customization option

[Theodric]

It's a bit of a slippery slope, unfortunately. If they give us wings or tails unrelated to our character races, it's only a matter of time before everything is as ugly as in other current MMOs, like WoW, GW2, etc.

Where the slippery slope begins is completely subjective in itself. We already have characters running around in pig and frog suits alongside other weird outfits. I'd find tails and wings as accessories to be far more interesting by comparison.