My advice to anyone watching the show is either:
a) Don't read the manga to spoil the story
b) do NOT go onto the Wiki (seriously, one misclick spoiled the entire story for me)
c) read up to chapter 30 of the Manga if you are interested as that is where this season's cut-off point will most likely be
d) read the manga and watch the anime
I'm really excited to see the next episodes, I just re-read up to 47 again and you realize all the foreshadowing scenes and how abrupt everything is, that's what makes this anime and manga so great.