>UNIVERSE I
RBY > 3 years later > G/S/C

>UNIVERSE II
FR/LG/R/S/E > 3 years later > HG/SS/D/P/P/Ranger > Many years later > B/W > 2 Years later (protagonist won) > B2/W2

>UNIVERSE III
OR/AS > Many years later > X/Y > ??? > S/M

>UNIVERSE IV
B/W > Many years later (N won) > Mystery Dungeon series

>UNIVERSE V
The real world/Pokémon Go > protagonist becomes a Pokémon > Mystery Dungeon series

>UNIVERSE VI
The anime (connected to OR/AS and S/M)

>It all comes together