According to me there are three things that would change the game of SEO(though they are already changing the perspective of SEO)
1. Local SEO:- This would be quite important, Google gives priority to those websites which has been optimized for Local SEO, those business running locally must optimize their website for local queries.
2. Author Rank:- This is another factor, existing from 2005 but got into action plan in final quarter of 2011. The more is the author rank the more you sets yourself as an industry expert. You can claim content authorship and become a reputed person on internet.
3. Social signals:- The more likes, sharing, mentions you have for your content, the more popularity it gets on web. Google is giving preference to those content which has got more +1s on G+, likes on FB etc.
Besides it content is also changing the SEO industry since many panda updates and it will continue to be a ranking factor.