Last modified: 2014-10-15 10:48:45 UTC
I managed to find that http://www.wikidata.org/w/index.php?title=Q21193&action=edit&redlink=1 was a duplicate only because I correctly guessed that the IP which created it did so in Italian. If this was in, for example, Arabic, I would have had no way of telling what this newly-made page had as its content without first trying to guess the correct language - not even with Special:Undelete. This isn't as bad for diffs because the edit summaries automatically show which language the change was made in, but for the first edit that creates the entry, I have no such aid, as the edit summary says nothing about the language used. One possible remedy may be a "view all languages" option, either as a special page or another tab, or, perhaps more easily, show which language the initial edit was made in.
There is a partial solution in change I2ed8bb96: First try on Multilabels
Change Ie91ca208: (bug 41994) display labels and descriptions in user languages
Change I33ea4cae: (bug 41994) display labels and descriptions in user languages
[replacing wikidata keyword by adding CC - see bug 56417]
I've retitled the bug (problem isn't just for *new* items, it's for *all* items that doesn't have a description or interwiki in a language you speak). Obviously, I can't *edit* item content in languages that I don't speak, either. My proposed solution would be that, at the bottom of the "in other languages" box (currently only displaying languages on the user's #Babel), an additional "in other languages" button is displayed. On clicking that new button, all languages which have an item name and/or description will be displayed. At the bottom of that, there should be an "add" button for adding item descriptions in arbitrary languages, similar to the [add] button at the bottom of the interwiki list.
Technically you can add {{#babel|foo-0}}, but that's terrible and isn't a proper solution.
@Kunal: Actually, no. If you don't speak a particular language, you won't even know that the content exists.