The idea would be now that we know these planets are there to start designing and building interstellar probes now to the best candidates. We have the know how to get them there in 60-70 years from 6-10 lightyears out.
The probe would have to be completely autonomous, a virtual artificial intelligence that would seek out worlds as they were discovered, or where signs point to a greater probability of life and litterally explore a solar system and then move on to the next likely star system sending back up dates on it's discoveries.
You could use a probe with a massive hydrogen collector and never have to refuel. It's a big project yeah but it's do able.