What if....

The only way to achieve true balance to the Force is to balance light and dark?

The Jedi represent order. If you live by their code you are not allowed to have contact with your relatives, fall in love, have a family of your own, or develop any kind of emotional connection that may sway your actions. It’s smothering.

The Sith represent chaos. If you live by their code you should act on your emotions, put yourself first, and ultimately betray your parental/mentor figure. It’s unsustainable.

These are simply opposite ends of a spectrum.

The PT ended with the dark side outweighing the light (following defeat of the Jedi).

The OT ended with the light side outweighing the dark (following defeat of the Sith).

Maybe the ST will end with a true balance between the two (akin to the truce during the Old Repulic era).