The list of popular Disney movies that fans would love to see a sequel to is endless at this point. However, if you aren’t going to get a sequel, it’s hard to argue with a spin-off television series.

Disney Jr. will take inspiration from the world of “Cars” and “The Avengers” for two new series: “Cars: Lightning Racers” and “Marvel’s Avengers: Mightiest Friends.” “Cars: Lightning Racers,” which ...