The official story from Asus was that it would be coming in 'early December'. However, now that Google has released a 5.0.1 update for a few Nexus devices (e.g. for the 2013 Wifi Nexus 7 but not yet for the 2102 version) I guess that we Nakasig users will have to wait a bit longer - but hopefully we'll get 5.0.1.