It appears the CP was actually granted in early January, last year. That would indicate the WVOX translator doesn't need to be built before January 2023.The CP was granted 1/21/18 and would have expired on 1/21/21. I can't readily determine whether it was extended under the FCC's waiver program because of COVID, but even if it was, there's not much time left. There were some issues with potential interference from the proposed site that held things up.
From F.C.C Database: https://licensing.fcc.gov/prod/cdbs/pubacc/Auth_Files/1787223.pdf