The BOJ has determined to continue the unprecedented quantitative easing. I would say they could not take any other choices than this policy. Once they finish easing, the national bond of Japan would devalue. The interest rate would be lifted resulting in the collapse of the governmental finance.
Going on this financial policy, it would mean the government gives rise to some sort of bubble economy, whether public or private. The bubble will be ruptured sometime. Again, it will cause the collapsed finance and devastated economy.
Any other possibilities?
It may be the time when we should consider of sustained economy. Ever lasting growth of economy is an illusion.