As "The Legend of Korra" continues production on Book 3, more news regarding the upcoming series has arrived.

Firstly, in conjunction with Dark Horse, it appears new "Legend of Korra" merchandise will be arriving on May 7.

According to Avatar the Last Airbender Online, a new set of merchandise will be released featuring the element symbols of "The Legend of Korra."

"'The Legend of Korra' takes place seventy years after the events of 'Avatar: The Last Airbender' and follows the next Avatar after Aang—a girl named Korra who is from the Southern Water Tribe. With three of the four elements under her belt (earth, water, and fire), Korra seeks to master air," says the official product description.

"We have themed our initial product releases to the symbols of these four elements, as designed by show creators Michael Dante DiMartino and Bryan Konietzko and the Nickelodeon creative team."

The merchandise includes a set of coasters ($9.99), patches ($4.99 each), a set of pins ($5.99), and a set of pint glasses ($29.99), all incorporating the element symbols.

In addition, a new image from "The Legend of Korra" Book 3 has been unveiled courtesy of co-creator Bryan Konietzko.

"Further Book 3 adventures in underwear," wrote Konietzko on his Tumblr.

This appears to be taken from the same episode as the photo previously unveiled featuring Mako and Bolin. The common fan theory regarding this storyline is that Bolin has just seen a spirit, which is now roaming freely around the world.

What do you think of this image? What could Bolin have seen?