Sumioni is getting patched

Sumioni was released today in Japan, and along with the release was the announcement of a free patch that is soon to come. With said patch, two new modes will be added, Ranking Mode and Gallery Mode.

Ranking Mode will be a "nation-wide" (This is subject to change with the international release) challenge, ranking players on how fast they clear each stage as well as how much damage they take, the less the damage taken, the higher the ranking.
Gallery Mode will allow you to view the visuals seen throughout the game, and listen to the game's musical score.

There's no exact release date yet, but suffice to say that it's highly likely that this content will be included in the international version.