A high-definition remaster of Okami, titled Okami Superb View Version, is possibly in development for PlayStation 3, according to Game Jouhou.
If true, the site speculates the game to likely be announced at the Capcom Summer Jam, which runs on June 30 and July 1 in Japan.
According to the site, the source of their story is somewhat vague, which is why it should be treated as a rumor for now.