Implications of new planet discoveries to our knowledge of solar system

In recent years a number of new planetoids have been reported, in particular by M. Brown and his team. While new planet discoveries have been reported from time to time, known as exoplanets, nonetheless discovery of new planetoids in the solar system are very interesting, because they are found after a long period of silence after Pluto finding, around seventy years ago. Therefore, it seems interesting to find out implications of this discovery to our knowledge of solar system, in particular in the context of quantization of celestial system.