Do you need to register domains under these new internationalised TLDs? To me it seems to be the obvious solution, that the internationalised TLDs will be aliases to the existing ones. So wikipedia.cn and 维基百科. c?n? will point to the same target. That's how I would solve it and I really see no reson to do it in any other way. But I couldn't find any information whether this is the case or not. I still could be wrong about this assumption. But if they will be aliases nothing needs to be done by the Foundation.
At the moment it is only planned to internationalise some few country TLDs. .org and other gTLDs will not be internationalised for the moment.
Marcus Buck User:Slomox