Durante has already stated in NeoGaf he'll be ready and waiting if fixing is necessary again. Praise the Durante, so The Game might be mended.
That's... ugh... please, no. One of the strengths of both Demon and Dark Souls is how the story isn't quite told, but you have to explore and search for it. Still, from what I've read around the webs, Miyazaki still remains behind the scenes as an advisor, so there's still hope.
Yeh I agree, half the fun is interpreting things for yourself.