Wilkipedia perhaps best sums up the current position. I suspect that whatever they do or dont do there will be unhappy folk. It's quite long....
The Japanese government considers that the legal and moral positions in regard to war crimes are separate. Therefore, while maintaining that Japan violated no international law or treaties, Japanese governments have officially recognised the suffering which the Japanese military caused, and numerous apologies have been issued by the Japanese government. For example, Prime Minister Tomiichi Murayama, in August 1995, stated that Japan "through its colonial rule and aggression, caused tremendous damage and suffering to the people of many countries, particularly to those of Asian nations", and he expressed his "feelings of deep remorse" and stated his "heartfelt apology". Also, on September 29, 1972, Japanese Prime Minister Kakuei Tanaka stated: "[t]he Japanese side is keenly conscious of the responsibility for the serious damage that Japan caused in the past to the Chinese people through war, and deeply reproaches itself."[91]
However, the official apologies are widely viewed as inadequate or only a symbolic exchange by many of the survivors of such crimes or the families of dead victims. On October 2006, while Prime Minister Shinzo Abe expressed an apology for the damage caused by its colonial rule and aggression, more than 80 Japanese lawmakers from his ruling party LDP paid visits to the Yasukuni Shrine. Many people aggrieved by Japanese war crimes also maintain that no apology has been issued for particular acts or that the Japanese government has merely expressed "regret" or "remorse".[92] On 2 March 2007, the issue was raised again by Japanese prime minister Shinzo Abe, in which he denied that the military had forced women into sexual slavery during World War II. He stated, "The fact is, there is no evidence to prove there was coer