If this all proves out, then potential earths might be even more common, with many circling stars doing a very slow burn. Red dwarf stars burn low and slow, lasting far longer than our sun. Imagine a world with life around such a star. There'd be all sorts of time for intelligent life to develop there, perhaps several times as the eons drift by.
Keep your eyes on the skies. And for those dour party poopers who declare it is unlikely that two intelligent races will occupy anything like stars nearby during their lifetimes as time is long, space is vast, and extinction can come on suddenly ... well, guys, you've got a lot of work to do to prove that negative position. I'll take a more hopeful stance and wait for further news.
For the full story from NASA, see: http://www.nasa.gov/feature/promising-worlds-found-around-nearby-ultra-cool-dwarf-star