I've put a lot of thought into this and there is no one real answer for me. Avatar: Macai's Journey is a comprehensive expansion of Avatar: The Last Airbender. It is made focusing on the story of a gifted firebender named Macai who produces white flames and who leads his own company. Rather than being one game, AMJ would have several games.
1. The original trilogy (the original AMJ trilogy would be a Halo Bungie style trilogy with intense fight scenes, a scripted storyline, and an offline vs mode similar to what is offered in the Star Wars: Revenge of the Sith game)
-Adeventure/action game with offline fight game mode
-Fight game has modes where you can play as additional Avatar: The Last Airbender DLC characters for a $5 expansion (Pack 1= Aang, Zuko, Azula, Ozai; Pack 2= Toph, Iroh, Ty Lee, Mai)
-In the first sequel you can pay for different DLC costumes as well.
-Third game will have Azula, Aang, and Zuko as default characters but other originals can be unlocked in one DLC pack for the offline mode.
2. The conquest mode style sequel {(similar to Star Wars Battlefront, Battlefield 2, Lord of the Rings Conquest where you capture territories showing flags of whatever side controls them) [(Earth Kingdom, Fire Nation, Water Tribe]}
-This game includes a hero vs villains offline and multiplayer mode, capture the flag, king of the hill (where everyone fights at one control point), and skirmish (same as deathmatch).
3. Real time strategy game sequel
For more info about AMJ, you can search us on Tapas (but the story is not complete in this platform) and check out our wiki.