1. More vanguard leaders are planned.
2. More scenes at the hot spring are planned.
3. I'll probably fine tune the balance of the strategy battle system once I work on it again.
4. The current worldmap is already enough to keep me busy for years. I'll finish all planned content first, and not expend anything further until that is done.
5. Planned.
6. I may expand on the topic of samurai/ninja/kunoichis more in the future, but nothing specific is planned yet.
7. Planned.
8. Planned.
9. Planned.
Summary: More content will come, but it takes time to make.