Citing "people familiar with the matter," the outlet says the company is considering the move back to the older format, which could help keep the device small for portability.
This isn't the first time we have heard of this possibility. A report by Eurogamer in July said the system would not only use cartridges, but also be playable while both connected to a television as well as on the go.
The report comes a day after the video game maker held its latest Nintendo Direct, during which it announced upcoming 3DS versions of Super Mario Maker and Yoshi's Woolly World. The company made no announcements regarding the NX, and analysts have told the Journal that an announcement could come before the Tokyo Game Show starts on September 15.