I am thinking about a site proposal for area 51, but it would be nice to have a different sections for country-specific questions (I'm Italian), maybe in other languages. I think that creating two different sites would be silly (people from the region specific site could and should benefit from the information on the general one), but I also feel that having just one site and using tags to filter questions wouldn't be right either: having questions in different languages on the home page would be too chaotic... Do you think there is a workaround?
At the moment there are 3 categories of region- and language-based proposals.
In the first category there are non-English topic-centered proposals.
I see no problem with this type of proposals. If there is enough X-speaking Y-experts, then a site for them is viable and should be created, even for X != English. Fair enough, not everyone speaks English. There are some problems with attracting enough initial commitment, but that's just a technicality.
In the second category there are area-based proposals.
Proposals in this category are rather poorly defined and target two separate groups at the same time: locals and tourists. With some luck such sites might evolve into valuable resources for tourists, but degenerating into local gossip site is also a likely scenario.
Then, there's the third category: proposals for anyone to talk in any language about anything that happens anywhere.
In my opinion that's deep in the Yahoo-Answers-land of chaos.