Boku dake ga Inai Machi (ERASED). Fucking great series so far. Won't tell any of the plot, but if you like thrillers this is the anime for you.
Ballpark Estimate Rating:
TV-MA for violence, horror and frightening scenes.
Psychological, Thriller, Horror, Supernatural
5, with ~25min lengths.
Link to a weebsite to watch it.
I'd say this has a pretty straight shot for anime of the year, without a doubt. Though that is a little early to say, but this has a pretty good chance.