Allocation of teams for the new competition

Over in Europe, meaningless friendly games from now on will be less and less and from next year is going to be down to a minimum. From September new tournament is going to start and matches will count as official ones. Yesterday the European football organization explained how the UEFA Nations league will work and divided 55 member nations in 4 different leagues, according to coefficient of the countries thus far.
In alphabetical order we begin with the strongest, league A which consist of 12 teams: Belgium, Croatia, England, France, Germany, Iceland, Italy, Netherlands, Poland, Portugal, Spain and Switzerland. In this category we will have 4 groups of 3 teams. Four teams that will finish at the bottom in their group will be relegated into league B.
Speaking of this letter here are also 12 teams which will be divided in the same scenario as the previous one. Austria, Bosnia and Herzegovina, Czech Republic, Denmark, Northern Ireland, Republic of Ireland, Russia, Slovakia, Sweden, Turkey, Ukraine and Wales. Four teams which will record only losses will be transferred into league C.
Fifteen nations comprise league number 3. One group will have 3 teams and 3 groups will have 4. Here are: Albania, Bulgaria, Cyprus, Estonia, Finland, Greece, Hungary, Israel, Lithuania, Montenegro, Norway, Romania, Scotland, Serbia and Slovenia. Four teams that are lazy will say bye-bye to this company and from next time are going to compete into the lowest, weakest league.
And that weakest league will have one member more. D is going to be made of 4 groups out of 4 teams and here are put: Andorra, Armenia, Azerbaijan, Belarus, Faroe Islands, FYR Macedonia, Georgia, Gibraltar, Kazakhstan, Kosovo, Latvia, Liechtenstein, Luxembourg, Malta, Moldova and San Marino. As we do not have league E, the fourth placed teams will hold its status in this lowest league.
All 4 group winners from each league will go into the play-off in March 2020. If one of those countries did not qualify for the European championship in the same year, this will be like a backdoor to enter the event. Lausanne is going to host the show for group phase draw on 24 January.