Question is still just the braking point of things. If someone can mimic the behavior of having 10+ staff, writing quality articles, doing white hat backlinks and in general promoting on FB, Google+ and Twitter, on a regular basis, as well as making the main site very authority alike, then I dont see how they can ever stop something like that.
Which means, we can automate the process, which means their algo update does squat, but is just better at catching pre-programmed scripts that have a tendency to overdo things. I actually think that overdoing is the keyword here. More is less these days, and one links from another authority site is worth much more than it ever was.
To put it bluntly, people with money cannot fail this, especially if they can pay their way to get established press sources to write nice blogs about their website. But then we are back again to the money factor and not so much to how anyone with 5$ can make a fortune. Looks like the ecosystem online will change as it has been with any other business. Only the rich and strong can survive, the rest will simply fade away or have their 5 min of fame.