Is The End Is Near For Facebook? If So Who Replaces It, Twitter, Google+ [POLL]

Yesterday I posted "Facebook users down 35% over the last 6 months". New users signing up are zilch,  their advertising on the site is a proven failure, and security issues continue to be on a major concern of most users.  Social media is here to stay for sure, however the crown prince is soon to be dethroned. I, along with several media experts,  predict that within one year (probably less), an already existing social media company will replace Facebook as the number one social media site. Assuming I'm correct in my prediction, which of the media sites in the poll below do you think will wear the crown? Included in the poll is the one most experts agree will surpass Facebook.