The manga is finished and season 2 will probably end after chapter 89 of 122. So that means they have enough content to make a third season. The only problem is that Bibury has already skipped some content. It would just be silly to end the anime with an open ending though, since the question is who he marries won't be resolved until later. So one can only hope if they do it at all then.
But if you want to know, read the manga. It's actually a bit better than the anime in my opinion, since as I said, some of it is missing from the adaptation that is either good or even important.
-Your Lie in April
-Fullmetal Alchemist: Brotherhood
-Violet Evergarden
-Fairy Tail
-Assassination Classroom
-The Pet Girl of Sakurasou
-Steins;Gate
-Kaguya-sama: Love is War
-The Rising of the Shield Hero
-The Quintessential Quintuplets
-New Game!
-Konosuba
-Tokyo Ghoul
-Death Note
-Love Live!
-Gamers
-Tonikawa