For those who don't know, YuYu Hakusho is a supernatural anime best known for popularizing the tournament arc trope we see in anime. It aired in the early 1990's and is also regarded as a classic anime.
About a month ago, a new OVA for YYH has been announced, which will go over chapters in the manga not covered in the anime, in celebration of the show's 25th anniversary. Here's a link for the article:
http://www.denofgeek.com/us/tv/anime/269744/new-yu-yu-hakusho-ova-coming-2018
I just found about this today and I'm already looking forward to this, so I figured I'd share this.