The way I albeit hope is what might be what is happening is something like this:
Avatar (The Way of The Forest)- The Prologue. Sets up the dynamics of Jake, Neytiri, Miles, and Grace, alongside planting the seeds of the introduction of Eywa and the Na'vi
The Way of Water - The First Chapter. The proper beginning of the story, rooted by the events and actions of the prologue. Acts as a reintroduction in this case due to the time-gap of a decade; but it also allows us to rethink characters in ways previously seen (Without going too much into spoilers)
The Way of Fire - The Penultimate Chapter. The middle of the story, with the most important decisions and choices made. Characters look to others past actions and choices, and it causes ripples to others; shifting the course of Pandora and the tribes
The Way of Life - The Finale (or, if it needs to be broken in half, to then have The Way of Death). Everything comes to a head and the future of Pandora becomes clear, it becomes to what we know as established following that of Pandora - The World of Avatar. Closes the narrative on all that has occured, while opening the door for future generations beyond what we may or may not see.