They might have changed the page since your comment but this is on the page :
"Android 5.0 Lollipop, which comes on Nexus 6, Nexus 9 and Nexus Player, will also be available on Nexus 4, 5, 7, 10 and Google Play edition devices in the coming weeks."
"Android 5.0 Lollipop, which comes on Nexus 6, Nexus 9 and Nexus Player, will also be available on Nexus 4, 5, 7, 10 and Google Play edition devices in the coming weeks."