>>38414465The best way to test interest in a JP dub would be a re-release of the original series. Unfortunately 4kids cut up the video so much they can't just do a low effort drag and drop of the Japanese audio and subtitle it.
It wouldn't be cheap, especially at ~240 episodes for the original series and the fact they would likely need to make a new English dub so that parents will be able to buy it for their kids.