A paper in Nature explains what a “quantum internet” could look like.

In stage 1, users will start getting into the quantum game, in which a sender creates quantum states, typically for photons. These would be sent to a receiver, either along an optical fibre or through a laser pulse beamed across open space. At this stage, any two users will be able to create a private encryption key that only they know…

In stage 2, the quantum internet will harness the powerful phenomenon of entanglement. Its first goal will be to make quantum encryption essentially unbreakable. Most of the techniques that this stage requires already exist, at least as rudimentary lab demonstrations.

Stages 3 to 5 will, for the first time, enable any two users to store and exchange quantum bits, or qubits. These are units of quantum information, similar to classical 1s and 0s, but they can be in a superposition of both 1 and 0 simultaneously. Qubits are also the basis for quantum computation. (A number of laboratories — both in academia and at large corporations, such as IBM or Google — have been building increasingly complex quantum computers; the most advanced ones have memories that can hold a few dozen qubits.)

So it seems as though the main advantage of a quantum internet would be truly secure communications. Which I guess is at least something, but doesn’t seem as though it would revolutionize everyday life anytime soon. There are no predictions in this article about when it might happen other than “a long time”.