There appears to be a Super Smash Bros. teaser site as part of the Japanese Namco Bandai website that will apparently reveal something in three days.

The above image, taken from the site, shows some real-world areas and items, which raises some interesting questions about what they could possibly mean, if anything.

You can also see that the countdown uses the title “All Star Battle”, which could be referencing to the game’s subtitle, or perhaps is just some form of working title at the moment.  Regardless, it looks like we’ll find out soon enough what Namco Bandai has up their sleeves with the beloved franchise.