Hm, quite torn among the suggested solutions... I'd prefer some combo, like 10 days after unlock supertesters can promote. I don't think it's feasible to get people to re-vote (I guess if you said it's good in the first place then it's a yes). OTOH I'm not a great fan of auto-promotion, maybe the author wants to synchronize a release with another package, a blog post, talk thread, etc.