I agree Burn. Football would have to be introduced at the collage level in these countries, so they have their own countrymen playing, and canada is the most logical 1st place because they are already into it.
Adding the CFConference to the NFL, and signing 3 more teams , so there are 12, with 3 divisions, makes the most sense.

I don't know , maybe one of the teams added could be from england.
But, I do not see europeans cheering for americans representing their country in a american game.
Same as I don't see baseball being as popular here if 95% of the players were from japan. Theres nothing to identify with.
Probably better for the NFL to start at the high school and college level in europe, and let american teams draft players from those schools. Until enough of a fan base is built to sustain a Conference .

Kind of like cuba. Baseball is huge because we sign players from there, and they could have 1-2 teams there, if they were not a military dictatorship.