I received a "preliminary call" from their PE about a month and a half ago which I guess they do every year, but haven't heard anything since. Not sure if I just blew it or if they just still haven't sent out any interviews.

Same. I got a call but I haven't heard anything.

I rotated there and met with the PD at the end of my rotation (which I guess is similar to the phone interview). I got an interview invitation after my rotation via email. Things may be different for me since I rotated there. I heard that they extended the majority of their interview invitations, but its unclear if that just refers to phone interviews or the email invite.