Apparently there is a complete book floating around somewhere and those who've read it are not amused.
I'm trying not to read and interpret too much into their comments on the matter.

There's actually not much we can do, is there? We'll have to wait and then see what JKR's going to do.

And then we'll take what she left and run with it. After all, there are Horcruxes, there are portraits, there is the place behind the veil. Dead in JKR's idea of canon doesn't have to be dead in canon as we like it.