All Avatar comics and novels are significant as they keep the franchise alive between the main releases. They give more opportunities for creativity. The comics can introduce new villains or heroes in a shorter format, while the novels can explore the psychological aspects of the characters in greater depth.
Well, when it comes to all Avatar comics and novels, there are a wide variety of them. Some of the comics are great for getting quick, visual stories that tie into the main Avatar narrative. The novels, on the other hand, can be more in - depth in terms of character development. They might introduce new plotlines that can be quite exciting for fans who want to explore more of the Avatar universe.
The order of Avatar comics can vary depending on different series and story arcs. But you can usually find a chronological list on official comic book websites or fan forums dedicated to Avatar.
Reading Avatar comics for free in a legal way might be difficult. Usually, you need to purchase or subscribe to authorized platforms to enjoy the content properly.
I don't have the exact information. Maybe you can follow the social media accounts or official channels related to Avatar comics to get the latest news on whether there was a continuation in 2019.