Citation: http://edition.cnn.com/2014/02/26/tech/innovation/nasa-new-planets/index.html?c=tech
The discovery depends on how far Kepler is located from the Earth. So, more planets will be discovered. But, it's true as far as the Kepler works normally. If the Kepler is in trouble and uncontrollable from the Earth.
NASA has to restart the project from the first place.