So what happens when it leaves the solar system? My knowledge of interplanetary communications is quite limited but will there ever be a time when the Voyager c

So what happens when it leaves the solar system? My knowledge of interplanetary communications is quite limited but will there ever be a time when the Voyager can no longer communicate with Earth because it is out of range? 16 hours to receive a message is quite a long time, will that keep growing until eventually it will take years to receive a message or we won't receive messages at all? The repressed space geek within me is jumping to all kinds of conclusions as to what will happen when it leaves the solar system, what it will find and what it may accidentally discover.