First, I am assuming that the seeded teams are (aside from the host) only from Europe and South America. Okay, now what will happen in the scenario where Costa Rica and Bahrain each win their playoff match? Africa and Asia would each have 5 while CONCACAF would have 4 and CONMEBOL 2 (remember Brazil/Argentina are seeded). How would they possibly set up the pots for this? Generally they just "combine" federations (aside from Europe) to get 8 per pot based on whatever fits, but that is not possible because there is no combination you can come up with to create 2 pots of 8 while keeping all teams from the same continent in the same pot. So how would they do the draw if this were the situation?