The wikis need different policies for undelete pages, at least, and coming up with one policy to deal with that for all of them is probably impossible since they have different liability. So it is liability that is going to define which wikis and how many exist.
Since geographical area is one of the factors in liability (what is against the law to say where) but also influences other factors (like wireless network coverage we can use) it is difficult to disentangle.
There are few problems with language versus liability, the choices are fairly obvious:
- liability is presumably the same in every language but the likelihood of being subjected to scrutiny or complaint is different - disparaging comments about Monsanto in English in the US are going to be more noticed than the same comments in Arabic in the same country
- each language needs its own sysop power structure at least in Publish Wiki to deal with vocabulary - it doesn't matter so much except near the point where a Consumerium buying signal is about to be released
- liability varies per faction - an offended faction that has funded trolls is more likely to be able to launch a libel suit if the trolls and troll vandalism don't succesfully hide the information; one that has no money and no lawyers in different countries can't do that; according it is transnational corporations that are most dangerous to offend, and this creates systemic bias in editorial function.
Consumerium Governance Organization has to balance these choices.
See Language vs. Area for an older version of this debate.