In the next release of Mission Control could you use the JText KEYs where these keys already exist?
For example, I changed the tab names for com_content so that "Metadata" was replaced by "SEO," and I replaced "Advanced Options" with "Article Display Options" -- terms I felt were more descriptive for my clients. But when I upgraded to the latest 2.1, these changes were lost (and I understand why).
For me, I'm starting to override certain JTEXT keys in the edit screens where I feel I can use terms that are more common or descriptive to my clients. And I assume others would want to leverage this feature to apply languages other than English.