"This ISG is seen as a transitional group i.e. a vehicle for the 5G community (and others of interest) to first gather their thoughts and prepare the case for the Internet community’s engagement in a complementary and synchronised modernisation effort."

The efforts seems to be in an quite early stage for now (architecture, models, requirements, etc).

I personally don't see TCP/IP going anywhere with 5G, but we may see more parallel deployments of protocols within isolated 5G network slices.

[1] http://www.etsi.org/technologies-clusters/technologies/next-...