Is there a way to figure out which email an API key is associated with (Even if some way internal)? We're going to a repackage of all of our artifacts to match our new website setup, and changing the group id of all of our plugins. We know this has to go through approval, but I don't know if any of us remember the email the API key is associated with. The first plugin being changed is currently sitting the manual approval step.

I'd recommend you open a ticket on the plugin portal requests tracker or write an email to the address mentioned there.

Wrote an email, we'll see how long it takes. Normally the approvals for new plugins have been quick, and we're definitely past the 48 hours the publish message said.