I am reclassing to 88n. Can anyone give me some info as a E6 what my job will be and what to look forward to?

I am currently an 88N.
Here is the brief description:
The Transportation Management Coordinator coordinates (88N), monitors, controls and supervises the movement of personnel, equipment, and cargo by air, rail, highway and water. Determines the most efficient mode of transport that accomplishes mission requirements. For being a Staff SGT you would be supervising all the movements. Hope that helps.

as per Pamphlet 600-25

Movements, Documentation, and TRANS Management Supervisors (88N). The movements or TRANS management supervisor or documentation supervisor is accountable to a senior/chief movements supervisor or OPS officer and supervises 5–10 subordinate personnel and TRANS management and documentation OPS at section level of BN through major command-staff level organizations.

26–16. Military occupational specialty 88N transportation management coordinator
a. Major duties. The TRANS Management Coordinator supervises, monitors, controls and coordinates the movement of personnel, equipment, and cargo by air, rail, highway, and water; determines the most efficient mode of transport that accomplishes mission requirements; advises military and DOD civilians concerning the selection of sites for depots, truck terminals, railheads, beachheads, airfields, ports, and inland waterway terminals. The senior 88N supervises cargo documentation and movement control units for all TRANS modes; formulates and reviews documentation on technical traffic management functions; devises and reviews movement programs for logistical support
functions in a theater of OPS; serves as the TRANS liaison between other military services, commercial agencies, and host nation support elements; reviews DOD contracts and agreements with host nations; verifies the accuracy of movement control documents; performs as staff NCO in military traffic management agencies; monitors QCs that ensure commercial TRANS services meet contractual obligations; monitors and documents all customs discrepancies and reports them to appropriate authorities; ensures allocation of transport capability is appropriate to accomplish each
mission in a cost-effective manner; serves as the primary operator of Standard Army Management Information Systems critical to moving the Army. The 88N SFC also serves as a contracting officers’ representative.

It depends on the post you go to and the position you are in. Being a SSG you will either be in a SPO trans section or an MCT. In an MCT you will work to ship and receive assets and may have the opportunity to work with outside organizations. In a spo trans unit you will work to meet your battalions trans needs, either way you and whatever team you are on your focus will be on deployment of assets when your unit is up for mission. However an MCT is made up of nothing but 88n so you will have not only your trans job but also your normal unit functions such as supply, ops, admin, training, etc.