According to IMDB, My Little Pony: Friendship is Magic (G4) has a much better rating (7.6 out of 10) than Pony Life (G5) which has (5.6 out of 10), perhaps due to the character development, plot lines, voice actors, and animation style. A more satisfied audience would likely lead to better merchandising opportunities for toys and clothing.

In The Last Problem, Twilight became Ruler of Equestria after Princess Celestia and Princess Luna retired. Maybe for Season 10 Episode 1, Twilight and Spike could use the time-warp spell and return to their prior lives and sizes. And everything goes back to normal.

Bring Season 10 to the screen! 

Please sign & share the petition for Hasbro, Discovery Channel, and DHX Media to bring back FIM with a Season 10 & onwards so we can all enjoy more episodes.