I honestly don't see him announcing Hardy's contract, unless it's multiple announcements.
It probably WILL be multiple, I don't see Vince coming out, saying 'we got a deal with USA, go us' and leave. It will probably be the USA deal and Brock signing.
Or, maybe when he announces they're going back to USA, Hassan's music hits and he 'terrorizes' Vince and announces that he's now on RAW. Then he says that USA is a real American network because they're going to let him back on RAW.