I've recently moved countries and didn't update my mailing address until well after the renewal was accepted. I'm wondering if I missed the new card at my old address or if I'm just meant to continue using the expired one.
UPDATE: for anyone wondering, it appears I will have missed my card in the mail. I was able to update a new mailing address, pay $25 for a replacement, and it will be immediately mailed out - no re-interview necessary. I'm assuming whether an interview is required or not is handled on a case-by-case risk basis.