Some (for instance Google) say the next goal should be beating a Starcraft virtuoso. Sounds both plausible and interesting to me. If they manage that, and I can't see why not, only the written, and then the spoken Turing test remains. And the latter, I'm sure, will never be accomplished.
There are two reasons I think that. The first one is that no amount of pattern-matching will ever get you to human behavior. I think we are more than patterns, more than just the sum of all previous experiences in life. The second reason is related. I believe - for good reasons, I must add - that humans have souls that are not part of this physical world, and not causal. At least not causal in the everyday space-time semantic.
AI will still be able to do fantastic things, and may well take over the world if we ever move across the singularity in the future. My current thinking only sees it as highly improbable.
