Gakkou Gurashi!
Just when it started to get really exiting and interesting IT FREAKING ENDED!
Tsuritama
It's my favorite anime, it is such a feel good anime! I think even though it had a great ending, I would totally love to see some OVA's, or a new season where they can explain more about Haru's home or what happens after the ending
Gekkan Shoujo Nozaki-kun
There should be enough content from the manga now to make it into another anime season?
Mob Psycho 100
FFS, this anime was some good shit. I'm pretty sure it will get another season, because it was very succesful and the comic is still ongoing.
Osomatsu san
This anime was a freaking rollercoaster! I want more of these awful boys.