Enough that Discotek was able to sell the entire series including the three sequel OVA’s. The toyline was also a moderate success here. It was no Gundam Wing but it did considerably better than Knights of the Zodiac (which is actually pretty funny since the show was accused of being a Saint Seiya knockoff in a similar vein to Shurato, only using Japanese mythology and theming vs Seiya’s Greek and Shurato’s Hindu mythological theming). The comment section of the preview video has a surprisingly large amount of people reminiscing over Ronin Warriors.
The show is actually rather important in Toonami history because it was what replaced Johnny Quest and shifted the block towards being an anime block vs an action one.
Also the first episode of this was surprisingly good.
It’s going to be a split cour so I could definitely see a dub after the first cour finishes.