I have the best Idea for a new sailor moon season!!
First, the name is called 'Pretty Soldier Sailor Moon Origins'. I gave it this name because the theme revolves around how the setting was created in the first place
The main villain is after souls in this one, looking for a particular soul that belonged to their benevolent queen (a lot of people use the "evil queen" scenario, so I just felt like following suit.) and was stoled a LONG time before the moon kingdom. The soul was stolen by the long rumored Sailor Earth , who could see the future. She took the soul, and the queen died. (Sailor Earth was infact the distant ancestor of Endymion(excuse the spelling if im wrong) and knew that the queen was going to go berserk any minute and didnt want it to happen(she was 100,000 times stronger that Galaxia and didnt even know it) so she set of for the planet and stole her soul. As she left, the imperial guards stopped her, knowing she had the soul, and put her in prison. The soul qiuckly escaped the clutches of the imperials, and fled of in space. The soul was a very pure soul (the soul would have been corrupted if not been stolen). The soul travelled through space, eventually naking it to the moon, where it transformed into the Ginzuishō (silver crystal) at that time,Sailor Earth was still in captivity (but she stayed alive with the hope left in her heart, and would soon die, but be reborn as Hina Tsukino, Usagi's cousin) and the first arc would take place.
Long story short, All the senshi get their "eternal" forms, New attacks, Sailor moons attack is called "Nature's Revolt" for some odd reason, and Sailor Earth's henshin phrase is "Earth Crystal Power, Make Up!"
Oh and in the manga, they are looking for the pure heart crystals instead.
There is no major plot until the final episodes, when the Ginzuishō
senses that the evil is coming and transformes back to the soul, leaving Moon COMPLETELY powerless. The Queen, now alive, has bent revenge on Sailor Earth wanting to destroy the whole planet, but she actually kills everyone, but the senshi, extrasting their souls and eating them, pure or not.
In the middle episode, they go back in time learning that the bad guys are still looking for the soul, so they decide to head 1000 years back to the moon kingdom, b/c that is where it was last seen We get to see the kingdom IN DEPTH, in detail and we get to visit the palaces that the senshi had on their coresponding planets, their princess forms, and much more!!