According to http://noc.wikimedia.org/conf/highlight.php?file=flaggedrevs.php, FlaggedRevs is enabled on de.wikipedia, ru.wikipedia and en.wikinews.
The extension is requested to get enabled on als.wikipedia (bugzilla:13968), de.wiktionary (13969), pt.wikinews (14254), en.wikibooks (14618), he.wikisource (14648), zh-classical.wikipedia (14715), eo.wikipedia (14728), ru.wikiquote (14863), ru.wikisource (15006), uk.wiktionary (15335), fr.wikinews (15346), hu.wikipedia (15568), pl.wikipedia (16177).
Is there any special reason for not enabling on those wikis (like extension still needs to be fixed for security/stability issues) or it is only the usual backlog at shell requests? Is recommendable to make more requests at this time or to wait a few more months?