An analyst says that we will see the next Nexus 7 on Google I/O next week, and that it will be called the "New Nexus 7", and no strange names like Nexus 7 2 or Nexus 7s.
Also the specs of the New Nexus 7 has leaked out:
7-inch LTPS display with 1920 x 1200 (WUXGA) resolution
quad-core Qualcomm Snapdragon S4 Pro processor (APQ8064)
HD front-facing camera
4000mAh battery with Qi wireless charging support
Android 4.3 Jelly Bean
(sorry for the distorted sound, the volume was too high when recording...)