Board Thread:General Discussion/@comment-29847884-20161012193009/@comment-29926185-20161012195733

Yeah, JG Quintel said that season 8 will have one big plot that runs over the course of the season and wraps things up nicely, hopefully all your questions will be answered by the time the final episode is over.

Or maybe they chose a completely ambiguous ending that asks more questions than it answers, in order to keep the fanbase discussing it/engaging in everlasting flame-wars about it for years and years - who knows? :P