"The wait" isn't exactly over for Garth Brooks fans.  Brooks had promised to have news for his followers on Monday, saying in a cryptic website post last week "The wait is over....7/7."   The country superstar announced yesterday that he'll be holding a press conference on Thursday, which you can watch at www.GarthBrooks.com .  The media event will start at noon Eastern.  Garth hasn't said what he'll cover in his press conference.  But word of his planned announcement has led to speculation that he'll reveal details on an upcoming world tour.  Back in December Brooks told ABC's "Good Morning America" he would be returning to the road this fall, after a 13-year absence from the concert circuit.