We are currently tracking a ticket requesting for Internationalise OnDemand (this would include all apps) in here.
I'd strongly suggest you to vote and comment on it to raise its awareness and also add yourself as a wacther for following further updates.
I'd also like to point that on October 15th 2012, Atlassian announced the end of service for Subversion and FishEye/Crucible on the Atlassian OnDemand platform. Subversion OnDemand will be replaced by our DVCS offering: Bitbucket with Git or Mercurial. FishEye/Crucible will continue to be available as downloadable install editions.
FishEye/Crucible and Subversion end of Service will be on 15 October 2013.
For further reference please see: http://go-dvcs.atlassian.com/display/EOL/Source+Review+Bundle+End+of+Service