The winner of the two legged playoff between Trinidad and Tobago and Bahrain will have 3 records:
Smallest country in terms of Area to play in the World Cup Finals:
Trinidad: 5,128 sq km
Bahrain: 668 sq km
Current Record: Jamaica: approx 10,000 sq km
Smallest Country in terms of population to play in the World Cup Finals:
Trinidad: 1,170,000
Bahrain: 678,000
Current Record: Togo: 2,500,000 (technically it's Jamaica since Togo hasn't as yet PLAYED, but they've qualified)
Trinidad and Tobago will be, for the first time, the 4th representative from CONCACAF at the World Cup Finals
OR
Bahrain will be, for the first time, the 5th representative from AFC at the World Cup Finals