Everybody losers here. Home match not a big advantage. These teams could move earlier to Europe and prepare to the games, but now they have to prepare between two games. And it is if we are talking about ideal situation that all 6 teams would be from Americas(as for me, North America would be ok too).
3 of them will be from South America, that was the deal, nobody knows the rest because we don't know which team will qualify but the obvious chance is that the other 3 will be from outside, they will probably try to force the odds so it will be Europeans ones in order to avoid making a team travel to 3 continents.
Of course, I don't know a single fan from my circle who would want to fly to every match to root for their favorite team. In that case, I would prefer to stay in one country and go to the matches that seem most interesting to me.
Depends a bit on what the distance really is, for example, between Madrid and Lisbon you have 600 kilometers, and this is between two countries, for example, fans trying to get to Lille from Marseille have around 1000km in the same league
![Grin](https://bitcointalk.org/Smileys/default/grin.gif)
Normally top teams get at least 30% of the tickets, spread this across 20,000 fans and if we count richer countries I assume it would be easy 5k fans that would travel across these countries to see all the matches.