In case you were wondering, Nexus 4 and Nexus 6 images for Lollipop 5.0.1 are now up on it devs page. The update began rolling out on a few devices a week ago, and now the older and newer mobile phones are getting their due share for your flashing pleasure only.
There is still no news on an update for Nexus 5, or the 2012 Nexus 7 LTE version, but we will let you know as we find out more details. Below you can find the link for the new images; happy flashing!
Source: Google Devs