The completely new TV Anime Battle Athletess Daiundokai ReSTART! Has been announced and is scheduled to be released in 2021. The original anime was released on May 25, 1997 as a 6 episodes OVA with 32 minutes per episode and on Oct 3 at the same year the TV Anime version was also released with 26 episodes. There was also a manga that was released at the same year with 4 volumes and 22 chapters.
Information for the anime is still light as of the moment you can check their official website and twitter for more upcoming information about the upcoming series.
Source: Daiundokai Official Website
Thumbnail from: Daiundokai Official Twitter