The first site using internationalization, Stack Overflow Portuguese, is now online for over 7 months.
What are the plans for other sites like this waiting to be launched at Area51? Will this be happening soon?
Site proposals in other languages have continually been made since this question was asked - and for good reason! The position that Stack Overflow has taken on these matters is that there needs to be a Stack Overflow site in the target language first before any other target language sites are added. Once that site has increased in momentum and has graduated, other Stack Exchange sites will be considered and added as per the Area 51 processes.
The Stack Overflow in Spanish, for example, was awaiting a native language Community Manager. Now that this person has been found, the site will continue on as all other proposal sites do.
You can read this informative post about the future of International Sites here.
You can also read about the latest update on the Stack Overflow Spanish site here.
Until official answer is given, you can see for yourself by search http://area51.stackexchange.com for "Stack Overflow" which currently gives those sites at 100% commitment:
All of the above showing:
This launch is on hold while we add the international features needed to make it functional for this community. Dates will be announced when available.
For example the Spanish site is probably awaiting a Community Manager to be recruited first, as can be seen here.
So we can just wait patiently, and slowly but surely those sites will arrive.
There are proposals for other sites in other languages:
However, none of these have much of a following at the moment.
You should be able to find others in other languages.
The system is that you propose a site on Area 51 and if it gains enough followers and sample questions it will proceed to the next stage of the process and then finally onto launch - once there is a community manager who is a native speaker of the language (the same as for Stack Overflow in Portuguese).