The official Watchtower description of the picture is:
In an area where their work is restricted, Jehovah’s Witnesses hold a meeting in a dark basement.
Interesting the all encompassing breadth of ethnicity in the very small group of JW's. Such an ethnic mix of JW's, and the styling of clothing, rules out nearly all present countries "where their work is restricted" including Central Asia, much of the Middle East, parts of Asia and North Korea. However, the inclusion of an entire Asian ethnic family with children limits the potential country even further, if not their own country then a country that would accept an Asian ethnic family, not being migrant workers, where the work of JW's is also restricted to the point of meeting in a "dark basement". Further the Revised New World translation is only available in printed form in a limited number of languages (at present it isn't even available in German, not even online) thereby limiting the nationalities of those present even further.
If I was to guess I would have to say the country is Borghistan.
