I was stating the same thing! From a promotional stand point, it makes sense.Kind of what papa geno mentioned
The box filled in may not necessary be the full roster just like with the card
-Robin/Lucina Reveal next week
-The market team behind that box art updates the design and begins printing (ready for the Nov. release of this particular bundle)
-shows the general public how many characters there are.
-November airs Final Smash Direct for the long time fans of the series to reveal what Spirits mode is
-And of course reveal a little more characters (Best case is 2 unique and 2 echoes, but that doesnt matter)
-Sakurai ends with "We hope we were able to make all your dreams and wishes come true..."
GENO REVEAL!
Sorry for the rant, but that is over I promise :D