Yes and no. You don't need any of the billable functions but for admin purposes I would add 2 licenses:
OneWorld - Client Access Express product 5722-XE1
The V5R2M0 version of Client Access Express has a new name:
iSeries Access for Windows
Client Access Express is required for OneWorld's clients and
servers. J.D. Edwards no longer supports Client Access (V4R4
and older) because Client Access Express is the only Client
Access product supported on multi-processor systems and
multi-threading applications.
OneWorld does not require any of the billable functions of
Client Access Express. These billable functions like 5250
emulation, printer emulation, and Client Access file transfer
are strictly optional for OneWorld installations but they do
require a full Client Access Family for Windows license
(5722-XW1) if you want to use them.
http://www-919.ibm.com/servers/eserver/iseries/developer/solutionservers/jde/links.html