I'm sure this could be done, although programmatically I'm not sure of how much work it would entail. I can understand that different english bible versions, have different words and word count per verse. But I think that using the text comparison tool as a template/example; shows that the same methods used to dispay a verse accross all the selected bible versions. Can be used to highlight accross the selected bible versions.
This could be limited to Top bibles or bibles of same language etc. It will help in not having to highlight verses all over again when changing bible versions.