I do not know if [[Special:Wantedpages]] is disabled site-wide (it appears to be). There is a request by ja.wiktionary people to enable [[Special:Wantedpages]] there. I am filing this for them.
Version: unspecified
Severity: enhancement
URL: http://ja.wiktionary.org/wiki/%E7%89%B9%E5%88%A5:Wantedpages