I would think you can recover from whatever it is she does if you're not dead when she finally stops. But of you are exposed too long you die and then stay dead.
And how can Kensei/Adam have weather manipulation powers as well as regeneration. If he's like Peter and can absorb other powers then he shouldn't need Peter, so I'm confused. And what's up with Surresh...is he so crazy that he's willing to compromise his lofty 'morals' and use Clare as a guinea pig just because she's Bennet's daughter? Or is he just such an idiot he hasn't considered she might not want to be experimented on.