At least four poeple have committed to contribute to a Wikipedia in the constructed language Novial. This language was published in 1928 by Professor Otto Jespersen followed by a multilingual dictionary in 1930.
In ISO 639-3 Novial has the 3-letter code nov. The documentation is here: http://www.sil.org/iso639-3/documentation.asp?id=nov
On the basis of internet information the number of people who write this language on the internet is in the order of one dozen to twenty. The language is well known among enthusiasts of international auxiliary languages and is often said to be one of the best.
You can read our conversation which yesterday confirmed at least four enthusiastic contributors at the novial-discussion group at Yahoo! http://groups.yahoo.com/group/novial-discussion/
If you wish to learn more about Novial see the Wikipedia entry: http://en.wikipedia.org/wiki/Novial_language
or the Novial Wikibook: http://en.wikibooks.org/wiki/Novial
The voting is on this page: http://meta.wikimedia.org/wiki/Requests_for_new_languages/Non-natural
Thanks,
nov_ialiste