How does the tournament qualifying (either World Cup or Euros) fit in with this nations league? Normally we’d be a few games in to a 5/6 team group qualifying campaign, what happens with that now?
Not entirely sure,but, I believe the 4 winners of each diviisonal play-offs (ABC and D) automatically qualify for Euro 2020 irrespective of where they finish in the Qualifying campaign
edit: Scrub that. here we go...
Euro qualifiers for 2020 will commence in March 2019, with double headers in the March, June, September, October and November international breaks.
Teams will be split into five groups of five teams and five groups of six teams. In total, there will be 10 match days - the same number as now.
The top two teams from the 10 groups qualify automatically for the Euros, while four more places at the finals will be awarded to play-off winners. Sixteen teams will compete in the play-offs.
Now, here's the interesting bit...
Each Nations League league gets four play-off spots. If the winner of a group has already qualified for the Euros, the next best team which has not qualified goes into the play-offs.
Those 16 teams will go into four groups, with the top team going to the Euros. The four teams play two one-off semi-finals and one one-off final to determine play-off winners.