So what is the next big thing in Social medea

Social Media = ['Follow!','watch !', 'likes' 'Circles!','+1', 'boards', '#tags', 'Share'] We have been seeing many upcoming and available social media sites are using one or all of the above themes/tricks/idea. github: follow/watch Facebook: google: likes,+1 Quora: follow! Its just diffrent UI design and some times its not ( like watch and follow) so my question is what is the next big thing!