Same fans are going to watch the matches of its rival league too
.......... indian public too are going to welcome its rivals as they love cricket
PS: A joint venture of PCB, BCB, SLC, CA, ECC, CSA can bring a lot more fan club than in India only and such collaboration will only result in more number of viewership all across the world. The indian public is already willing to accept its rivals as they love watching cricket like Pakistan and other nations. Only a couple of business tycoons backed by ICC can create its rivals too. Like i sad before Money talks!
I am not saying all cricket boards create this venture but only ECC, CSA and CA has enough potential to stand its rival or if necessary alone if backed by the business tycoons like happened in India