That's an interesting concept... (LOL if
Pokemon would be utilizing it, as that's one concept I've never even heard of before! It would be a
very strange and obscure concept for a Pokemon to represent) :\
But it would make much sense with Kyuremu being the embodiment/representation of something that acts in the
total reverse of the yin-yang concept (didn't think it was possible, so I was advocating for Reshiram and Zekrom to be a duo without a third member being related, consequently having the third Pokemon being represented by a Suicune-esque Pokemon that is part of one of Isshu's legendary trios).
I thought Game Freak would have to force something to fit with
yin-yang, but that
Wuji idea seems to bear more relation to yin-yang than any concepts I've heard of before, so it doesn't seem forced to relate with the concepts of yin-yang that Reshiram and Zekrom represent.
(by "forced to relate," examine Generation 4's dragon trio of Dialga, Palkia, and Giratina - as antimatter was sort of forced upon Giratina in order to continue the "physics" theme of said dragon trio.
Time and space work better with each other because they are dimensions as well, but matter/antimatter isn't even a
dimension, thus being incongruent with the other 2 concepts of time and space. Then again, you need something to "travel" through/between the dimensions, which would be matter, I think. Doesn't exactly make for a perfect trio of concepts, but it works for the Gen 4 dragon trio.)
That
www.pokemongray.com website message seems very interesting indeed. If it
does turn out to be related to the actual
Pokemon Gray Version, I'm very glad that the
Pokemon franchise was referred to as "
one of the world's top brands" by Melbourne IT DBS. It seems true anyway, considering the sales and apparent popularity of the games... :D