According to this web page,http://www.rpsc.org/canadapost.htm
Canada Post will be releasing stamp two different Grey Cup related stamp series on Jun 29 (regular season opening day) and Aug 16 (35th anniversary of the death of Elvis Presley?), and also a postcard series on the latter date. If you follow the link and scroll toward the bottom of the page, you can also see preview pics of a couple of the items.
I expect the post office to be full of CFL fans waiting to get theirs.