For any sequel of the mainstream storyline of the Kingdom Hearts series, that would be Kingdom Hearts III. But the problem is that the opportunity of developing the sequel is not currently [possible]. The team is busy, I am busy. I'm thinking about what's going to be next after Kingdom Hearts II, the future that is Kingdom Hearts III. Time has nearly come to [work on] that concept.
Yes it might be possible. It is my desire to develop the next Kingdom Hearts on the existing platform, but the problem with a new console is that it has new technical requirements. So, yes, I'm willing to create something on the existing console because when we aim for another non-existing future console, the release of the title will be far in the future. That's my concern.