User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-99.120.77.79-20140127000033/@comment-1359322-20140127000811

For the first question. Yes there's that possibility.

For the second question. We don't know the full extent of the relationship of the Heavenly Dragons, they have fought for many years and just came to understanding in Volume 16. Why they fight, for what purposes all are still unknown.