I’ve been reviewing the IPv6 Forum Roadmap and Vision 2010 (application/pdf object) document as we are attempting to complete the TSSG submission to the updated document for 2007.
One interesting technology driver for IPv6 from my perspective is Multihoming (RFC 3582), providing a site with the ability to insulate itself from certain failure modes, such as logical link or routing protocol failures within one or more transit providers, as well as failures in the network providing interconnection among one or more transit providers.
RFC 3582 contains the goals for IPv6 Site-Multihoming Architectures from which SHIM6 derives its goals. And at the moment the TSSG are studying SHIM6 in great detail.