Even if we could there isn't much point. There just isn't very much out where the Voyagers are, and there won't be for a long time. We're shutting down sensors on Voyager because there just isn't much to see. It's just vacuum.

If we had something capable of getting to Voyager in a year that might be worthwhile, because it would stand a chance of getting somewhere interesting in a few decades. But we are absolutely nowhere near that level.