With this, I have this weird feeling that Kanda won't actually "die", but more like "Kanda" will die, once that lotus or whatever has wilted. And perhaps, since these experiments seem to point to him, he will become an Akuma or something like that once the flower has wilted. In essence, "Kanda" himself will no longer be around....
Doesn't make much sense, but that's the first thing I thought of.