Should be remade in the 2002 He-Man style
If you've ever seen the series, the 2002 revival of He-Man did a fantastic job of maintaining the show's basic characters and premises, but updating the animation to a spectacular level of quality, and giving the show much more mature, Lord-of-the-Rings-like scripts.
As Thundarr was a superior show to the '80s He-Man in the first place, if it were given a similar, serious, updated treatment, with quality animation and weighty storylines, it would be a spectacular series.