Also, I think I should add that a split is inevitable.
If the Wikimedia Foundation chooses to not host it, those of us who
believe a separate Wikipedia is nessecary will fork - not just
linguistically, but the serious type of
different-server-different-domainname fork entailed in for example
Enciclopedia Libre (enciclopedia.us.es), wikinfo, wikiznanie.ru, etc.
I'm not 100% sure but I think a similar thing happened some years ago
when fr: was allowed to decide whether or not wa: was created, and
eventually it was transferred to Wikimedia Foundation servers.
Basically, what I am saying is this:
No matter how much the Simplified users (and perhaps a minority of
Traditional users) protest, there will be a forking. We (those
supporting a split) hope it can be done quietly and without a real
departure from zh: but rather one where interwiki cooperation will be
possible and even frequent and not stressful.
However, if the Wikimedia Foundation decides that zh-tw: is not
deserving of its own Wikipedia, we will pursue more radical measures,
ie complete separation which will make interwiki cooperation much more
difficult.
Please realise I am not threatening anyone, just letting you know that
this is going to happen no matter what, and that really what we are
discussing here is whether it can be hosted by Wikipedia and be
officially part of Wikipedia, or not.
Best,
Jin Junshu/Mark