I hope we learn that “cosmological” balance is important before it comes to that.
Light and Void.
Life and Death.
They are all part of the grand order of things. You could get a couple of expansions out of that concept pretty easily. Using the standard three act set up (anything else would require too much planning/nuance).
Act 1 - Introduce concept that Void and Death might not necessarily be bad things, while Light and Life might not be 100% good either.
- Alleria’s Quests - Argus
- Dialogue between Alleria and Turalyon about Xera (naru) - Argus
- Void Elf recruitment
- Mag’har recruitment
- Bwonsamdi’s quests
Legion and Battle for Azeroth
Act 2 - Large scale fighting between cosmological entities (Void Lords v Naru, Death Gods vs Nature Gods)
Twist#1 - Naru or Nature God is the bad guy, or at least A bad guy. Elune maybe.
Twist#2 - We recruit Sargeras to help us with whatever the new badness is. Probably a Void Dragon or something.
Two future expansions
Act 3 - Some pandas teach us about Harmony.
Azeroth is born and leaves the planet (intact) so we stop coming under attack. There is probably some massive moment where she fends off the “Void Dragon” and saves Sargeras from his fel taint. We shove the rest of the cosmological entities out of Azeroth as well and get back to killing each other.
One, POSSIBLY two more expansions to wrap up Act 3.
By then its the year 2030 or so, and the point is completely moot as WoW probably only has 350k - 1M players at that point.
If the game’s sub base falls before that grand scheme their Plan B is to pull an Age of Sigmar on us and start from the ground up with a new MMORPG, probably one that involves player-built content like housing / cities / quests, and is less “Theme Park” and more “Sandbox.”