DALLAS — Troy Aikman’s time with the FOX Sports is not officially over, but it sounds like it. Of the many developments in the current NFL offseason, the next destination of some of the top national voices in the business has become a priority ahead of the players and actual games. Because some of these guys are making more than the players and coaches themselves. Troy Aikman, Al Michaels and Joe Buck are all rumored to be heading to different networks next season, as they are now all three enjoying a bidding war for their respective services between NBC, ESPN and Amazon. Fox Sports, where Buc…