Whilst it seems that the lifespan of the to Voyager probes may span out to 2030 the missions themselves are presently being wound down
An important part of the reason for this is that the administrators of the program are nearing the end of their working lives. This New York Times Magazine article also states that these aged administrators are the only people capable of handling the antiquated technology of the Voyager probes.
I quote from the New York Times Magazine article:
“As the Voyager mission is winding down, so, too, are the careers of the aging explorers who expanded our sense of home in the galaxy… …For the foreseeable future, Voyager seems destined to remain in the running for the title of Mankind’s Greatest Journey, which might just make its nine flight-team engineers — most of whom have been with the mission since the Reagan administration — our greatest living explorers. They also may be the last people left on the planet who can operate the spacecraft’s onboard computers, which have 235,000 times less memory and 175,000 times less speed than a 16-gigabyte smartphone. And while it’s true that these pioneers haven’t gone anywhere themselves, they are arguably every bit as dauntless as more celebrated predecessors.”