It is in fact, popular. I think it can be potential, as long as you add it as a subculture.
An Animated Cat Singing The iPhone Ringtone Became A Meme
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Legend of Korra entry?
Last posted
May 07, 2012 at 01:42AM EDT.
Added
May 06, 2012 at 12:36PM EDT
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It might be worth making, since it's so popular. But there haven't been any real memes to come out of it yet. I'd wait awhile.
I think it will be better do an entry of The Last Airbender before.