Bandai Namco has announced that update 1.04 will include an additional seven digimon to the game. The update launches worldwide on March 10, 2016.
Considering the update is coming out after a year since release, with Digimon World Next Order set to release on March 17, 2016, the update is most likely a way of Bandai Namco thanking western gamers for supporting the game.
The digimon included are:
ShineGreymon Burst Mode (Ultimate/Mega)
MirageGaogamon Burst Mode (Ultimate/Mega)
Rosemon Burst Mode (Ultimate/Mega)
Ravemon Burst Mode (Ultimate/Mega)
Chaosmon (Super Ultimate/Ultra)