i wouldn't really call it changing
my sailor moon fanfiction i'm writing with TheFacoBattle (https://www.deviantart.com/thefacobattle) and TamashiNOpotato008 (https://www.deviantart.com/tamashinopotato008) , ultimate sailor space, will be divided in 4 arcs
1st arc: sailor moon y (yume)
2nd arc: sailor moon m (mirai)
3rd arc: sailor moon g (gin)
4th arc: sailor moon Ω (omega)
NOTE: "yume" means 'dream', "mirai" means 'future', "gin" means 'silver' and Ω(omega) is a letter from the greek alphabet.