The purpose of the Road Map is to assign issues to a release. Since "Future" is not a version or a release -- but just a grouping of issues for the "future" -- it has little use, and the way we use it tells me we're using the Road Map wrongly. Now, I believe that's the case, but I am not going to fight this issue too strongly because it is not critical to anything. I'll go back and look at the archives, but there's nothing wrong with re-examining past decisions. I haven't seen other JIRA projects slating things into a "Future" version -- and probably because it's not a version.
Paul