@bolinizawesome There is actually an entire forum dedicated to The Last Airbender Movie: http://avatarthelastairbenderonline.com/groups/the-last-airbender-movie/forum
As for a sequel to The Last Airbender, M. Night Shyamalan already has the plan and some of the scenes done. However, due to the fan’s reaction (this being my assumption, but is pretty obvious IMO), the second movie has not yet been given the green light.
Seeing as the first movie made a profit, and I’m pretty sure the second one will as well. The second movie may be coming within the next few years if more people demand for it.