T20 World Cup Super 8's seedings are predetermined (if they both advance from each group it doesn't matter if first finishes second) , can't recall this ever been done before
If a different team advances they just take the seeding of the team they knocked out
Group 1 (USA)
A1 India
B2 Australia
C1 New Zealand
D2 Sri Lanka
Group 2 (Caribbean)
A2 Pakistan
B1 England
C2 West Indies
D1 South Africa
1st Round - Group Stage
A India , Pakistan , Ireland , Canada , USA
B England , Australia , Namibia , Scotland , Oman
C New Zealand , West Indies , Afghanistan , Uganda , PNG
D South Africa , Sri Lanka , Bangladesh , Netherlands , Nepal