Update: Regardless of what I've found on forums or replies, true SMB2 or SMB3 scanning is not currently supported. Ricoh has acknowledged and is quickly working on firmware.
As of now, there will be an updated firmware available before 8/1/2017 for all of the latest Mono "55" series and Color "04" series. Additionally, there will be more firmware released for the mid-volume, production, and desktop models in between now and the end of the year for current models.
From what I understand, legacy models (Mono "54", Color "03", and the like) are currently not on the radar for this firmware upgrade, but may be added to the list soon (or may be released simultaneously).