We can't predict what startup is going to succeed, why do we think we can predict what the future of AI will look like?
Even if new architectures that are specifically designed to leverage neural nets[1] or some other variety of processing are developed, the fundamental realities of computing, programs, physics and economics are not immune from being sufficiently underwhelming as far as AI is concerned.
Of course, this is precluding cloning technology where actual biological brains and therefore legitimate "life" and therefore intelligence can emerge.
[1] http://www.nytimes.com/2014/08/08/science/new-computer-chip-...