I would like to see that the use of the Review Required check-box no longer change the status of an article.  A reason for this is that, when an article is marked for Review, a Review Flag is applied anyway, which can be searched on by Knowledge Administrators.  A flagged article can be searched on and prioritized based on it's Status (I.e.  A Published or Approved article may be reviewed before a Draft article), however as the status is changed when using the Review Required checkbox, the option to prioritize is lost.

The ability to restrict the Review Required checkbox from changing the article status would solve this issue by allowing the status to remain, but a flag be applied.