If you could tell a bit more about possible pairings of nations and a timeframe when the merger could happen, that might be helpful.
If a seeding was based on WR teams on the rise could experience a disadvantege.
Größter Knecht aller Zeiten aka His Excellency aka President for Life aka Field Marshal Al Hadji aka Lord of All the Beasts of the Earth and Fishes of the Seas aka aka Conqueror of the Buzzerbeater Empire in Europe in General and Austria in Particular