The 2010s is the 2nd decade of the 21st century, and will be the decade when gen y will probably find their place, and gen z will rise, while gen y has kids that will be the generation after z that no one can quite name. Baby Boomers will start to reach retirement age this decade which will probably put a massive strain on social services, and gen x will reach a more prominent political position in the world.
The economy may get worse, and we are working towards green energy and actual worrying about the health of our citizens so this decade will probably be more realistic about the health craze instead on the 2000s where it was all Atkins diets and such.
TV will probably get better as scripted shows are making a comeback, and reality is losing popularity. Cartoons also seem to be making a turn for better with things like Adventure Time and Beavis and Butthead slated to return in 2011 with new episodes. Music seems to be moving in the direction of electronic taking hip-hop's and modern rock's place pretty quickly and becoming more popular. Hip-Hop seems to be waining, and emo is dead/dying and scene is also. Indie rock also seems to be rising as a new trend.