I think the title says it all. Some rumor can be put to rest, as Korra is seen pictured with her spirit guide, which looks like a Polar Bear Dog of sorts. What do you think it is?
A source for the image will be found soon, but it is seemingly reliable as it was received along with this image, a Legend of Korra certificate, with an exciting new logo! Can't wait to see more from Comic Con in the coming days!