Note: The following article is not a canon statement, is just an observation over some elements in the DC continuity.
There are seven dominant forces in the DC universe, and there are Seven main heroes in the JL after the Rebirth, and each one of them is linked to one of the seven forces.
(Note: When I say "linked" I mean "related", not "connected", some cases count as "connected" though).
Flash: As it was showed before the introduction of the seven forces, the Flash is linked to the Speed Force, the dimensional force that sets the universe in motion.
Green Lantern: As it was also showed before the introduction of the seven forces, Green Lanterns' power comes from the Emotional Electromagnetic Spectrum, the manifestation of the emotions of the beings in the universe, being the Will the central emotion.
Aquaman: The Life Force, the force that allows the life to flourish and flow through the world, brought to us in the form of water, the element that gave birth to the living beings in the planet and that connect us all.
Wonder Woman: The Sphere of the Gods is the energy that bends the rules of nature to the will of the user, the fount of all the magic and divine power, wielded by gods, new gods, angels, demons, sorcerers and, in this case, the demigods.
Cyborg: As a half machine, Cyborg is the embodimient of knowledge in the Justice League, Batman might be the smartest member, yet the one filled with knowledge instead of intelligence, as such, Cyborg would be the one linked to the Collective Unconscious.
Now, there are only two forces left, The Dimensional Superstructure, the force that states the laws of the universe, and the Faithfulness, the force inside us all that gives us hope and awaken the hero inside us. There are only two heroes left in the list, the World's Finest (Batman and Superman), the thing is that I don't know wich one to link with each one...
In one side, Superman is the most powerful hero of the earth and someone that has control over the imaginable, able to fly, super-strength, heat vision and all and Batman, as the primal member of the JL without super powers is the one that has the faith and hope, becoming a hero despite everything else.
But for the other side, Batman, as the one without power and fully human (almost) could be the one linked to the Dimensional Superstructure as he is the one that it's what the universe stated to be, the one who follows the rules of the universe, such as humans bleed, humans don't fly and all that meanwhile, Superman, the original hero is the embodiment of the Faithfulness, being the principal sign of hope in the earth.
What do you guys think?