Yes, according to Amazon the soundtrack of Book 1 is coming out on CD.

Korra

The listing calls it "Legend of Korra: Original Music from Book One" With a release date of July 16th and published by Nick Records. Pre Order price is 12 dollars 52 cents. Sadly no track listings or cover art. Now this more than likely is The Track Team's big announcement we are expecting, but they have yet to reference this yet. So perhaps when they do we may get some more details. For now this is a great sign as the listing seem legitimate. Thoughts ?