When the show was originally announced, it was reported that Warner Bros. had ordered 52 episodes. A standard season of animation is often 26 episodes. Therefore, fans logically deduced that "52 episodes" equated to two seasons. However, the production team produced 26 episodes and split them into "Book One" and "Book Two" for the DVD releases, or simply ran them as one long Season 1. When the show was canceled after these 26 episodes, the remaining 26 were never produced, leaving a gap that fans mistook for a hidden second season.
If you open your Netflix app searching for "ThunderCats 2011 Season 2," you will find nothing. The show is no longer part of the catalog. More critically, Season 2 itself has never existed in any form on any platform—because it was never produced. thundercats -2011 season 2 netflix-
If the show had been renewed: