It will be one of the usual suspects.
Arg, Bra, Fra,Spa if they all avoid each till the semi final. That would be my final 4.
Dark horses for me are Ger, Por, Eng, Hol, Cro, Col. All good teams but not as the 4 above.
Here's a good one. Only 2 European team has won the world outside of Europe, Spain in 2010 and Germany in 2014.
With the excessive heat in all 3 hosting countries I can see a proper strong showing from the South American teams.
Group stage will be a farce with 7, 8 or even double digit wins for the big teams vs the newer smaller teams who are just happy to participate and get their millions from FIFA and rightly so.