Assuming they integrate the technology tightly enough into the core of the engine could this potentially serve as a sort of "DRM" where you can, by setting a single flag in the UE4 editor, make the given entity or subsystem remote, and thus never exposing the actual guts of the system to the users? If so, I guess that this might enable a new way of integrating proprietary middlewares which are otherwise very hard to get your hands onto.

I think that if their technology also allows for dynamic scaling based on current/projected demand this could potentially save a lot of money since, at least from my limited experience of running various game servers for ~thousands of people, 70% of the time the demand is between 10-20% of the peak demand.