Making an announcement about an announcement (that isn't a done deal) is what leads to the damage to your track record when that announcement does not pan out. Announce nothing until the announcement is FOR SURE and contracts have been signed.
You could even have me make the teaser announcement (after it's official) on here. It would go something like "Attention TVD fans, I would like to announce that Col. Terry Rice will have a MAJOR, MAJOR, HISTORIC announcement next week (or TONIGHT, TONIGHT, TONIGHT). You do not want to miss this announcement! BE THERE!!!"
The preceding announcement has been paid for by Grumpy's Bail Bonds, The Law Offices of Bart Durham, Bert Prentice's Leather Outlet and the word "announcement"