Disneyland has resumed Magic Key sales today, January 17th. A virtual queue has opened to purchase tickets. Here’s the announcement by Disneyland (h/t Scott Gustin):

Please note that, due to high demand, Magic Key pass availability is limited and being in the queue does not guarantee the ability to purchase any Magic Key pass. Note: New pass sales will be paused each night at 10:00 PM Pacific Time. Guests will remain in the queue overnight, as long as they remain connected to the network and keep their browser window open. Pass sales will resume no earlier than 9:00 AM Pacific Time, the following day.

If any passes are still available when it’s your turn, you’ll have 10 minutes to enter the site. Entering the site does not guarantee the ability to purchase any Magic Key pass. New pass sales are available online only.

Update (9:16am PT): Still available to purchase: Imagine Key, Believe Key, Inspire Key
At this time, the Enchant Key is available for renewal only.

Magic Key purchase link: https://disneyland.disney.go.com/passes/