Change one thing about a cartoon

[Asa]

For Loud House, I would make No Such Luck be a Lucy-centric episode.

 

[Asa]

For the first season of Total Drama Presents: The Ridonculous Race, I would give more character development and screentime to the Geniuses, Vegans, and Fashion Bloggers.

 

[AdrenalineRush1996]

For Carmen Sandiego, I would have the recent finale ending with the resumption of Carmen's search for her mother as well as vowing to confront the ACME chief for killing her father.

 

[AdrenalineRush1996]

For the end of Wizards: Tales of Arcadia, I would've extended the last scene to include Aja and Eli in order to set up Rise of the Titans.

 

[Asa]

For Winx Club, I would explore more of the six main character's lives after finishing Alfea and explore more with the story character arcs of Stella, Musa, Aisha, Flora, and Tecna.

 

[AdrenalineRush1996]

For Batman Beyond, I would introduce a future incarnation of Teen Titans in which Terry would serve as team leader.

 

[AdrenalineRush1996]

For Avengers: United They Stand, I would have being set in the present.

 

[Asa]

For Martin Mystery, I would give the second season 26 episodes, thus making the series have 78 episodes in total.

 

[Red Arrow]

For Martin Mystery, I would give the second season 26 episodes, thus making the series have 78 episodes in total.

The second season wasn't that good and Martin and Diana were a bit over-the-top then. I would have rather had a fourth season with 12 episodes.

 

[AdrenalineRush1996]

For Pokémon, I would give the GS Ball arc a proper closure than the one that felt rushed as not to contradict a certain upcoming film.

 

[AdrenalineRush1996]

For Digimon Adventure tri and Kizuna, I would have each being a full anime series than a film series and a film respectively.

 

[AdrenalineRush1996]

For Yu-Gi-Oh!, I would have Miho Nosaka appear as a main character rather than being only appearing in the original 1998 amime.

 

[AdrenalineRush1996]

For Beyblade, I would have a sequel series focusing on older versions of the original series protagonists in vein of the recent Digimon Adventure entries.

 

[Asa]

For Miraculous Ladybug, I would make Santa Claws production code 224 and the two-part Heroes Day 225 and 226 respectively.

 

[stephane dumas]

An earlier post

For Kim Possible, I'd have Yori becoming a supporting character as in moving to Middleton and ultimately teaming up with Kim and Ron from time to time in missions that doesn't necessarily be set in Japan or have Monkey Fist as the antagonist.

I'll go a step further, having Yori getting her own spin-off series.

 

[stephane dumas]

For Wayside school, having 2 or 3 more seasons and having more characters from the books appearing in the cartoon.

 

[Spacething7474]

The Fairly OddParents! - The episode Weirdos on a Train remains the same except now Crocker blatantly has a crush on Mr. Turner.

 

[stephane dumas]

For the 1st live-action FOP "Grow up Timmy Turner" (it's live-action but since it's based on a cartoon, it's close but no cigar), I would have used Remy Buxaplenty instead of creating the character of Hugh Magnate and having the van then Timmy got as a gift from Jorgen, doing some funny gags more or less similar to that Land Rover from that 1980s comedy movie "The Gods Must be Crazy".

 

[stephane dumas]

For Total Drama, a new season who could fix some characters developments back on the rails like Trent, Dakota and Ezekiel and/or having contestants who desserve a longer run in the season like Bridgette, Katie, Sadie, Sammy, Brick, Sam, Rodney.

 

[AdrenalineRush1996]

For Star Wars Rebels, I would do an Ahsoka focused miniseries that leads up to her appearance in The Mandalorian.