LapDanceRevolution
Oboromaru
Actually, I know absolutely nothing about this remake. But if I were to make a guess, I'd say they'd use something about her involving time, saying she came from a really far distant time when it was still considered a planet.
who is that in your siggy >.> is she from like persona 4 the golden or is it from the arena game o.o
(Sorry for butting in, but yes, that's Labrys from P4Arena and some of the P3 Vocal collection stories)
As to answer the question, since Pluto was classified as a planet at the time, she's most likely still considered a Planet Guardian. Besides, it's supposed to follow the manga and even in the manga, we learn that one doesn't have to be in the planet classification to be a Sailor Senshi. In StarS, Vesta, Juno, Ceres, and Pallas- all celestial bodies who are now considered dwarf planets and/or some other body I can't remember right now- wind up becoming Sailor Chibi Moon's crew, plus you have others from other systems.