Probably not. Not without fundamentally changing the way our brains work. I think we'll 'cure' addiction when we, as a society, stop treating it as a personality flaw, and start... well, treating it.

I think over time we'll devise new and better treatments to help people deal with addictions and hopefully better educate people about their bodies and how they function, but I think people will become addicted to things for the duration of human existence.