I would say better-than even chances that sites like intrade gain prestige in the next decade
and betting on predictions will become common ( 90% that there is a student at 75% or so of high schools in 2020 that will take bets on future predictions on any subject, 40% that >5% of US middle class will have made a bet about a future prediction)
naive guesses based largely on http://www.fivethirtyeight.com/2009/11/case-for-climate-futures-markets-ctd.html
I predict further that I will continue to post on LW at least once a month next year (90%) and in 2020 (50%)
http://predictionbook.com/predictions/1710
Kind of vague, but I suppose it's not too hard to do a search and note that the NYT only mentioned Intrade a few times in the 2000s and more in the 2010s.
http://predictionbook.com/predictions/1709
I have no idea how one would measure this one. I'm sure that at any high school you could find a student willing to wager with you on any damn topic you please.
I would like to propose this as a thread for people to write in their predictions for the next year and the next decade, when practical with probabilities attached. I'll probably make some in the comments.