A sporadic qualifier for the tournament, Uruguay qualified for their second tournament in a row in 2019.
A side with incredible talent, Fiji could give Australia and Wales some problems.
A potential bogey team for Wales first up, Georgia could be ones to watch in Japan.
Warren Gatland's last major tournament until Wayne Pivac takes over, Wales will be looking to go far in Japan.
Australia always seem to raise their game for the World Cup, can they do so again?
Coming off a momentous win against Scotland, the Americans are building in the right direction.
Los Pumas are ones to watch next year, take a look at our guide on them here.
Unlikely to proceed to the knockout stages, Tonga could still be a surprise package in Japan.
As always with France, their World Cup chances depend on what version of Les Bleus will show up.
A disastrous home World Cup in 2015, England are once again under pressure to perform in Japan.