i'm new here, what the fuck happened??

SPOILERS

i was looking on youtube for new episodes because i'd heard >!ikeda died!< and thought it was another fanganronpa (because it was in the fanganronpa subreddit), then looked on the wiki and now >!most of the characters are dead!<, but chapter 3 literally just started?? and i've heard stuff about tetro blue being cancelled but then also stuff about tetro white? WHAT IS GOING ON