A good explanation why Japanese apology is not enough for the Chinese.
Solarz, what is the best way forward for Japan?
Japan needs to make its own fate. I hold opinions only so far as its decisions affect that of my motherland, China.
If the Japanese apology sounds hollow to victims of its Imperial past, then that is a failing the Japanese must address themselves. I am atheist, but I believe in Karma: you reap what you sow. No matter if it's perceived or actual, Japan pays a price for not being sincere enough in their apologies: just look at the South Korean outrage against a "secret" intelligence sharing treaty. Thus, what you are describing is a Japanese problem, not a Chinese problem, and China need not interfere.
On the other hand, I think there is much to be admired in today's Japanese society, and much that China could learn from. For example, I once read an article from an english-language Japanese newspaper about the need for improving social support for the blind. It struck me because even in Canada, we don't have this kind of social dedication toward helping the disadvantaged.
I have several Chinese friends who have traveled to Japan. All of them remark on how polite the Japanese are, and how clean its cities and streets are.
China and Japan have many common cultural characteristics, making Japan a better role model than, say, the United States. Right now, I think it is a shame that so many Chinese people are blindly rejecting all things Japanese simply on account of historical hatred. This is something that would only harm China in the long run, not Japan.
This is why I say: forgive, but never forget. Learn the lessons of history well, and keep them close to heart, but let go of the hatred: it serves only to hold you back.