Top rank nor GBP are good to the fans like UFC is. So a network being in bed with one promoter will not end up a good thing. UFC is showing their HW championship, yes their HW championship fight of Cain Velasquez vs Dos Santos and it's going to be aired on Fox.
Do you think Top Rank or even GBP are going to put their top 2 fighters against each other on a primetime network? I personally don't.
For boxing to work on a network, the network would have to work with multiple promoters.
If Top rank does make this deal happen. Expect Top Rank to Yuri Foreman and Tye Fields us to death. Just like he did with the versus network.