Okay, I know Lego made a couple of sets a while back when they had the deal with Nickelodeon. The sets were okay, and I really didn't get into the series until later. And yes, the odds of what I propose happening are slim to none, but bear with me here.

Lego Avatar the Last Airbender Video Game

You see, like SW characters used the force to manipulate bricks, the Avatar characters would use their elemental bending to move bricks. They would be colored differently for each element (yellow = air, blue = water, green = earth, red = fire). Most characters could only use one element, but Aang could use multiple elements. (And depending on the story, he could use more as he learns them) And other, non bending characters can have other artifacts, like grappling hooks or jumping abilities. And the story can be told in the three chapters to follow the three series, and each one can take place in different locals. And they could ride on different animals or in Fire Nation vehicles and such.

I think this is an awesome idea. Somebody contact TT Games!