In addition to revealing that two new One Piece games are currently under development, the Japanese magazine Weekly Jump has also announced a new video game for Gintama in the pages of its latest issue (relayed by the Gematsu website).
The title "Project Last Game" is described as a "serious traditional action game" with a great modeling.
For now, the release date of this new Gintama has not been revealed. Only the fact that the game is planned on PS4 and PS Vita is known. Also, we don't know if this game will be available for all regions or only in Japan.