Possible Clues:

• Superstate setting of “1984”
• Sea current advanced in islands state
• Melanesia, Micronesia etc
• Big Brother’s nation, in “1984”
• It includes Australia and New Zealand
• Polynesia's region
• "1984" superstate
• Return of people keeping dry around cool, green region
• Nauru and Fiji's area
• Superstate in "1984"