Nick.com as usual have put up a preview clip for this Friday's episode, K210 A New Spiritual Age.
http://www.nick.com/videos/clip/legend-of-korra-122-clip.html
A very interesting clip here with the Kataang kids as they watch over Korra and Jinora's bodies. Tenzin worrys about how dangerous it will be for them with no bending, to which Bumi naturally takes offence.
As ever, Nick.com remains region locked for everyone outside of America. So use Tunnelbear to get around it.