In reply to: I would suggest that the group stage games posted by KeoughCharles05
1: a stadium in the flipping desert.
2: a stadium in the flipping desert.
3: a stadium in the flipping desert.
4: a stadium in the flipping desert.
5: a stadium in the flipping desert.
6: a stadium in the flipping desert.
7: a stadium in the flipping desert.
1: a stadium in the flipping desert.
They will do only one of Seattle and Portland and, at very most, two of three of Seattle, Vancouver, and Portland.
Not to mention that Portland would have triple the size of their stadium to even be in the conversation.
And not the 48 teams with 16 groups of 3 that I thought was the actual setup.
I do like the idea of the setup if it was a 32 team tournament, and completely agree with most of your substitutions (Austin would be a terrible place for a World Cup game, and Guadalajara is awesome, so...).
That suggests to me two sites in each country.
I think that probably means Vancouver and Toronto in Canada; and Mexico City and either Guadalajara as you suggest, or Guadalupe.