my SE vs. NLR plans and plans on a possible universe

I have been thinking on how to go about my Solar Empire vs. New Lunar Republic story and it dawned on me. I could make a universe that could join this to the Heart of Equestria project. But with that, I am making new characters for this as well as a new world and origin. Here is a few of such characters:

Zaratan: An Orchish magician in the world of Fellior. His ambition for stronger magics drives him into discovering ancient and forbidden powers buried underneath the world. After learning of the dark powers, he resigned his magician ways and became a warlock, bent only to the pursuit of dark, demonic knowledge that will eventually ascended him to become a cruel tyrant that drove the elves into near extinction and the humans and Orcs to search for a new home. But not even Zaratan could anticipate his power would elevate him to godhood. He sought more power to expand his rule when he stumbled upon a prophecy that when 5 dimensions of Equestria would unite into one, a sixth world would appear and from that, create magic eternal. Zaratan, wanting this power, sends 5 of his most powerful and cunning demons to those 5 Equestrias to shroud them in darkness before merging them to create a world of eternal darkness he would use to rule all.

Qu'e: One of the demons tasked by Zaratan to invade Equestria. Master at manipulation, she will attempt to persuade Princess Luna to doubt her sister and plunge into the nightmare realm again in an attempt to reclaim what she had thought she had lost. The job of her in doing so is to spark an all out war that would leave Equestria vulnerable to the encroaching shadows.

Fuzeran: Brutal and headstrong. This demon is tasked to guide the dragon prince Draxion to betray his father and rule the Lavalands with and iron fist. As the world he has been assigned to is incomplete, he also guides Chrysalis's hand in discovering the power of the orbs to corrupt the heart of Equestria.

Galektra: Silent and deadly, she had accomplished her mission to plunge Equestria into eternal suffering by ensuring that Discord was never defeated and Tirek all powerful.

Tianceline: Ever shifting and ever changing. This demon specialized in confusion and mischief that brought an end to the people of Equestria when she let loose a horde of monsters from her masters realm unto the unsuspecting citizens.

Sombra: A tyrant Unicorn of unforgiving power. He was defeated at the battle of the Crystal Empire and has been seen wandering around Equestria as a shadow. He has yet to plunge the world into darkness, but his cruelty and malice makes him the strongest of all of the demon lords.

Persephone: A surviving human of Fellior. She and most of the humans and Orcs crashed in Equestria's volcanic part of Equestria called the Lavalands. She now rebels against the tyrant king Draxion for his crimes against his father.

Cecil: Elven ranger and one of 5 surviving elves. They made it to Equestria's forests where they tamed and befriended the wildlife. Within years, they repopulated and now hunt in the wilds.

Cid: A human mechanic who created the vessels they used to escape Zaratan. He and his friend, Dervin, spend all their time tinkering with their gadgets. Gifted in machines, until an explosion killed Cid. Leaving Dervin alone.

Dervin: An Orc Blacksmith. She was ironically given a boys name when her parents expected a boy. Nonetheless, she has proven a master in the art of the forge and is able to craft amazing weapons and armor.

Bloodwing Dusk/Drifter: A stranger who travels across Equestria. He is a former student to Starswirl the bearded. It is unknown what he is doing and what his goals are. All is known is that his actions has left the family name Dusk in darkness. A sin that will be pinned on Sonata Dusk.

Now for the worlds. Since Equestria was mentioned many times, I am going to be more specific to prevent confusion:

Equestria 1: The main focus world in the Heart of Equestria. An unfinished world due to Crytalis attempting to corrupt the heart. The main villain is Queen Chrysalis and Fuzeran. Native Heroes who will save this world are the mane 6 and the Dazzlings. Sota Steelwing will arrive to this world from his own.

Equestria 2: A world about to be set to conflict by Q'ue. The New Lunar Republic, led by the corrupted Luna, seeks to defeat Celestia and the Solar Empire by any means. The villains in this world will be Nightmare Moon, Q'ue, and Solar Flare. Native heroes will be Sota Steelwing, Sonata Dusk, Adagio Dazzle, Aria Blaze, Sunset Shimmer, and Shining Armor.

Equestria 3: A world parallel to Equestria 1. Sombra, who thought as dead in the Crystal Empire now resides here to spread terror and hate to all until he was presumed dead by Sonata Dusk and Spit Fire. Due to a stranger, he will return even stronger.

Equestria 4: A world doomed by Tirek and Discord. The survivors are few and hopelessly outmatched. A doomed world.

Equestria 5: A world doomed by the monsters of Zaratan. It had become a wasteland of darkness and bones.

Equestria 6: ???

Fellior: A world of Orcs, Elves and humans. Homeland of such characters like Persephone, Zaratan, Cecil, Cid, and Dervin. It has fallen when Zaratan became corrupt and drunk with power of darkness.