I know this is a thread about the comics, so sorry to continue to derail it, but im really interested to see how the sequels turn out, commercially and critically.
I would wager that Avatar was only as successful as it was, because of the way the film looked for 2009. These days though, great looking CG films are basically a dime a dozen, so it is unlikely that it will stand out like that anymore.
Im also curious to see what the demand of a sequel to an 11 year-old film is like. Unlike Star Wars, which basically went all-in on games and EU comics and books after the OT and PT, to keep the franchise evergreen, Avatar has basically been dormant for the best part of 10 years, causing it to once again be overshadowed by Avatar: TLA and now Korra. Hell, even if you search for Avatar Comics on Google, I had to get to page 3 before I saw anything for Avatar (2009).
Just not sure if the franchise has the legs for 4 more bi-yearly sequels. We'll see, I guess.