This is one of those obvious next year projects that we all look patiently for and finally next year really arrives and we are graced with action. At present we have no real grasp of likely object density though we do have reasonable bounds to work with. What appears certain is that the number of Pluto sized objects could well sky rocket.
We would also love to map comets. The size of those is not well understood but some can be scary. After all the Pleistocene Nonconformity was caused by a huge comet that not only broke up but impacted smack in the key bulls eye on the Ice Sheet. It likely was Pluto sized as well.
My point is that there is a lot to be done out there until we can send serious expeditions in all possible directions to gather close by close by data. That will take another thirty years at least.
by Staff Writers
Washington DC (SPX) Jun 17, 2014
This is an artist's rendering of the New Horizons spacecraft encountering a Kuiper Belt object - a city-sized icy relic left over from the birth of our solar system. The sun, more than 4.1 billion miles (6.7 billion kilometers) away, shines as a bright star embedded in the glow of the zodiacal dust cloud. Jupiter and Neptune are visible as orange and blue "stars" to the right of the sun. Image courtesy