Historically speaking from my own past experiences, Hosts have never announced when new items were coming out (unless it was already published in the newsletter).
Both Aengus and I can confirm that a Host said she could not tell us when that Space Moutain sofa she was sitting on would be for sale. As it turned out, it was on sale the following day, but it was a complete surprise to everyone in VMK.
So if a player tells you that a staff member told them something will be on sale, and it's not announced officially, don't believe it.
Everything is a rumor until it's printed on the VMK home page or newsletter. And even then, we've had announcements that didn't pan out.