To be brutally direct, in commercial TV terms the A League rights are close to worthless right now. Any broadcast investor would have to be investing either because they have nothing else to fill the schedule or because they see potential for growth. The latter scenario only flies if the investment is substantial enough to grow the League through more money to clubs and a functional marketing budget. Has to be said, not very likely. Paramount is the first case - the A League as schedule filler.
When I say close to worthless, I mean in relative television terms. They will always be worth something. However, we risk falling into a death spiral where the amount the league is worth is not enough to sustain a viable competition, which is the case now. What happens then is that the value of the league continues to diminish over time. I remember reading years ago a comment from a poster who obviously had some expertise in this area, saying that based on their experience the A-League was entering exactly that kind of spiral. This is not a fast process, more of a slow trickle. Looking back and remembering that comment and looking at the state of the league at the moment, that poster may have been right. I very much hope not. I'm desperate for the A-League succeed, but the picture is very gloomy right now.