Season 2 is the second season of the television program Steven Universe. The season premiered on March 13, 2015, beginning with the episode "Full Disclosure". New characters were introduced over the course of the season. Because of the "StevenBomb", to satisfy the criteria of "a week full of new episodes," four episodes were moved from season 1 and were subsequently aired during season 2. Those episodes are "Open Book", "Say Uncle", "Story for Steven" and "Shirt Club", respectively.
Season 2 went on a summer hiatus after "Reformed" on April 30, and returned with a second StevenBomb, beginning with "Sworn to the Sword", running from June 15 to June 19. The third StevenBomb (called "Week of Sardonyx") aired starting with the first episode called "Cry for Help" on July 13 and ending with "Friend Ship" on July 17, marking the end of a short hiatus and the beginning of another one. New weekly episodes were planned to return in August, but got pushed back to September 10 due to unspecified "boring production reasons." After six weeks of new episodes, the show went on a winter hiatus on October 15, 2015, and returned January 4, 2016, with a StevenBomb starting with "The Answer" and ending with "Log Date 7 15 2" on January 8, 2016.
Season 2 and Season 3 were originally planned as two halves of a 52 episode season, however on March 30, 2016, it was confirmed that there was a change of plans, and seasons 2 onwards will have just 26 episodes instead of 52, making the first half (episodes 53-78) the second season, with "Log Date 7 15 2" as the season 2 finale, while the second half, episodes 79-104, were reclassified as Season 3.
"Log Date 7 15 2": Peridot suffers from psychological trauma from antagonizing Yellow Diamond.
Amazon Instant Video and the official Cartoon Network site lists Season 2 as "Season 3".
The September promo for Steven Universe had an Easter egg and the logo for Sea Pals on the boxes at the door.
During the summer of 2015, titles for most of the upcoming Season 2 episodes were posted on the CN website.
The order of these episodes were never specified, and that "we'll learn the actual episode order as they air."
Despite this the actual airing order seemed almost identical to the leaked listing. Notable differences include the episodes from "Sadie's Song" to "Gem Drill" being absent, along with "Barn Mates". And the final four episodes being shifted in airing order, most notably "Tiger Philanthropist" was pushed from September 2016 to March 2017.
Since the remaining number of episodes are higher than 26, it's possible that two of the upcoming episodes are from season 3. It is also possible that some of the titles were working titles for episodes that have now aired.
Rebecca Sugar and Matt Burnett announced that Steven Universe is renewed for a 4th and 5th season and season 5 will go to 2018.