No. It is out of the question, as long as the current definition of planet prevails. In order to be a major planet (Pluto is a minor, or dwarf planet) it would have to clear a large area of the Kuiper Belt (the asteroid belt where Pluto spends most of its time) of any objects-- at least objects that are close to it in size and location. It's not likely that Pluto will ever do this. Pluto has that other oddity as well; it travels inside of Neptune's orbit for roughly 15 years out of every orbit. No other planet pair does this. There is no danger of Pluto crashing into Neptune, because Pluto and Neptune have an exact harmonic relationship. This includes the fact that for every 3 Neptunian orbits, Pluto makes 2. So some consider Pluto to be more like a moon of Neptune rather than a planet per se.
Pluto may become a major planet again in a few million years, if it clears it's orbit of asteroids and other debris.
no
Since 2006, Pluto has been considered a dwarf planet.
A Dwarf Planet
On February 11, 1999, Pluto resumed its position as the outermost planet in our solar system, surpassing Neptune. This event happens due to Pluto's orbit, which is elliptical and not always within Neptune's orbit.
In order to be considered a planet, Pluto would have to clear its orbital path of debris. Pluto is not large enough to do this, so it was reclassified as a dwarf planet.
Pluto didn't change; our ideas of Pluto did. It turns out that Pluto is smaller than originally believed, so eventually he was "demoted" to the status (newly-created) of a "dwarf planet". It is unlikely that he will oficially be declared (by the IAU) a planet again.
The IAU no longer regards Pluto as a planet so Neptunewill forever be our 8th planet even when it is farther from the sun than Pluto. However it will be another 230 years before Neptune is farther from the Sun than Pluto
Becuse the planet was to small
Pluto, it is now a dwarf planet or planetoid.
Pluto's orbital is elliptical. Its farthest planet from sun when it lies on two elliptical end. On the other hand Neptune's orbital is circular and become larger then Pluto's orbit when Pluto come in the middle of two elliptical end. For this reason Pluto is not always farthest planet from sun.
Since Pluto is no longer considered a planet, mercury has become the smallest planet.