Maxis announced today that The Sims 3 expansion "70s, 80s & 90s Stuff" will be available in January 2013. The pack includes clothing and stuff that exemplifies the decades of the Nixon through Clinton administrations (Wilson through Blair in the UK, Indira Gandhi to Vajpayee in India).
The division of Electronic Arts also teased a college or university expansion pack coming after the three decades of stuff pack. The Sims 3 is currently prepping for the Seasons expansion this November.