I read some complaints and questions on interwiki-links. Will there be the ability for admins to edit the list of interwiki-prefixes in MediaWiki 1.5 so developers do not have to deal with them anymore? Like Blogrolls of Weblogs we could also have WikiRolls. Special:Wikiroll could print a list of other wikis and their namespace-prefixes.
No, there will not be a way to do that like that.