I once asked an elder in my congregation "What if an anointed falls away and then several years later repents and comes back to the fold, is he still anointed or is he one of the great crowd?"
He replied that he would still be anointed because "you can't be demoted in your heavenly inheritance. Once you have the heavenly calling, you either retain it or are destroyed."
So I asked "Then that means that someone who replaces a fallen away anointed member is replacing a dead one?"
He said "Exactly."