I wonder how long it will be before Google fully cuts Gmail off from the outside world, much like how they turned gchat from a member of the federated xmpp/jabb

I wonder how long it will be before Google fully cuts Gmail off from the outside world, much like how they turned gchat from a member of the federated xmpp/jabber ecosystem into hangouts and cut it off from the everyone else. I guess if nothing else, it would probably reduce spam!