In the past, Capcom has released their games in Japan without Japanese voice-overs and with English being the only language track. However, Capcom has recently decided to add Japanese voice-overs for their big titles. The upcoming Dragon’s Dogma: Dark Arisen, the expansion to the original Dragon’s Dogma released in 2012, will feature a Japanese language track as well.
Their other recent prominent title, the latest installment in the zombie horror that started it all, Resident Evil 6, will also be getting voiceovers but they will be made available as a DLC in the coming future.
No further information is known about the voice-overs including any details about voice actors or the cost of the DLC. Capcom will update us on the DLC once it comes closer to completion so we will just have to wait and see.