Originally Posted by jonathancrane
I suspect the cure for his healing factor might be based on the cure from X3. It would be a logical progression.
I posted in the other thread, but I think the cure in Wolverine is different. The X3 cure ends up being temporary (as hinted by the final frames of that film), and someone does their own research to find a real, permanent cure.
Just an idea. I could be way off.