As a developer, when I request a review I would like that to initiate a trigger in Jira so that our workflow can ensure the related issue moves to Dev Review automatically.  Developers often forget to move the Jira issues and this would more fully automate it. It looks like Jira has that integration for Crucible. 

Same request for Review Approved.  Review started and Review Rejected would be nice to have as well, but Request Review and Review approved would be most important.