According to Buzz Plus News, Jump’s classic manga series JoJo’s Bizarre Adventure is making the fifth part, JoJo’s Bizarre Adventure Golden Wind (ジョジョの奇妙な冒険 黄金の風), into an anime. The speculation is made based on two trademarks registered recently.
Both trademarks were registered by Jump’s publisher Shueisha back in December 2017 and not public until 9th January 2018.
The trademark is applicable to games, DVD, and animations. With that being said, Golden Wind will be a multimedia franchise just like the rest of the JoJo franchises.
Golden Wind is the continuation of JoJo’s Bizarre Adventure Diamond Is Unbreakable, whose TV anime adaption finished in December 2016. It was illustrated and written by Hirohiko Araki (荒木 飛呂彦) between 1995 and 1999.