EA have registered the domain name for The Sims 4, indicating a potential reveal in the near future. Of course it could be EA simply protecting domain names for their titles, but we all know it's bound to happen.
The Sims 3 was released last June for the PC. EA will be releasing console versions later this year as well. Meanwhile the PC and Mac will be getting some DLC, The Sims: Medieval, in which players get to play as characters from that period in time.
The Tokyo Game Show is coming up and EA supposedly has quite the showing and are expecting to announce some new titles.