No word yet on when it will be rescheduled for, but obviously we'll let you know as soon as we do. Until then, you can always console yourself by checking out what we expected to see at the event - namely, Android 4.2, the Nexus 10, and the Nexus 4.
Evleaks Says HTC Is Building Two Nexuses - M1 And S1 - And We Think They're Codenamed Marlin And Sailfish
[Update: M5C14J For The Pixel C] Nexus Factory Images With April's Security Updates Are Now Available
[Updated] Google Camera v3.2 From Android N Preview Is Rolling Out To All Devices [APK Download]