Tales of the Abyss is one of the few Nintendo 3DS games only available on a cartridge. That will change on December 3 when Bandai Namco re-releases the 3DS version on the Nintendo eShop in Japan.
The Japanese version will cost 2,980 yen and includes a 3DS theme as a bonus. Bandai Namco has not announced plans for a re-release in the West, but it seems likely since an eShop version will be available in other regions too.