Traditions end, new ones are begun. Turkey for holidays is largely a North American tradition anyhow (because, I think, they are native to here). In Britain, it's usually goose or ham or something for holidays. Other parts of the world have their own thing, too. Families have always had their own traditions that diverged in small ways from the larger traditions of their society. For my family growing up in Kitchener, Ontario (and many others in K-W I'm sure) going to the Oktoberfest Parade was a Thanksgiving tradition that most other communities would not have (since Thanksgiving parades aren't a thing here like they are in the US).
In the end, it is the spirit with which you observe Thanksgiving, not the specifics, that matters. Our soup contains the bounty of the harvest (see ingredients in my post) and most of them are Canadian so we are just as thankful for that as someone who mashes their potatoes, boils their carrots and serves it all with turkey instead of in a soup. Not that soup is necessarily our tradition at this point, but I would see no harm in it becoming one.
And like all good Thanksgiving meals, there's enough left for lunch today!
