Hi Naoko,
As part of SDL's strategy to converge on a single language technology stack, SDL TMS will be implementing the new cloud-based translation memories; a technology shared with SDL Trados GroupShare. Implementation of the new cloud TM will also allow more options for importing and maintaining the translation memory as well as bringing in functionality such as context matching and fuzzy match repair. Keep watching the SDL TMS release announcements for more information in 2018.
Regards,
David