What new forms of drama and literature did the janaese developed?

It seems you're asking about the "janaese" people and their contributions to drama and literature. However, there isn't a known cultural group or ethnicity referred to as "janaese". It's possible there's a misspelling or a less common term.

To help me understand your question, could you please clarify:

* Are you referring to a specific cultural group or region? If so, please provide the correct name or more information about them.

* Are you thinking of a particular historical period? Knowing the time frame would be helpful.

With more information, I can give you a more accurate and helpful response about the development of drama and literature within that culture.