More Can-Con ;-)
There's two different ideas we're talking about:
1) What dates can you
check in and receive FD, which is what you mean when you say Canadians get offered a week earlier, and
2) When can you
BOOK these FD specials, which is what I was talking about.

I believe that Canadians will be able to book FD the same time Americans can. It is an interesting question to see if there are some differences in the dates offered for check in.
Ooh, does Air Canada have Disney vacation specials? Say more.

That would be great if they had access to FD booking for exactly the reason you stated.