Hello,
Thank you for your questions! We have just created a new post to explain the steps following winning the contest.
Now, to answer to your questions:
- Yes, KADOKAWA will need the consent and approval of the developers, and a new contract for these new contents would need to be issued.
- The contract details will be negotiated between the developer and KADOKAWA.
- Same answer, the details will need to be negotiated between the developer and KADOKAWA on this particular cases.
Thank you again for asking, we hope that these answers are helpful!