BG Marks - Will They Be In Mailbox? Or Gone?

[Scalpel-arthas]

The part that concerns me and makes me think they won’t survive is this post:

Marks of Honor Are Lasting Too Long in the Mail

We’re working on a hotfix for this issue. After the hotfix is applied and certain servers are restarted, we’re going to try to modify your mail so that anyone who has these will not be able to carry them over into the next week. And going forward, new Marks of Honor in the mail will have a 24-hour expiration. Thank you for the report!

Historically, have BG marks survived in the mailbox Monday → Tuesday (post reset)?
If they have… I don’t see why they wouldn’t be there waiting, right? …Right?