This is most certainly the ultimate of sneak peaks.
We now know thanks to Nick on tumblr that at the Korra SDCC Panel on Friday at 11:15am will include a screening of K201 Rebel Spirit, the first episode of Book 2 Spirits.
Along with this we have a piece of art done by Bryan to hype it up.
So the Friday panel has suddenly gone from anticipated to unmissable. All that we need to know now is if filming of this part of the panel will be allowed or will the first episode be released online.
How hyped are you know for Friday?