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Things are going in this way and ICC is fully supporting this all because they are not talking anyone about better future of this game no one is interested in fair play all looking for some big gifts and stuff from IPL, so I feel India is not alone big market in world many other countries can also have some good benefit from these leagues even these will not good enough but still these can profitable for them and many local players also beneficiary of this system.
I am seeing these comments where ICC is benefiting greatly when they allow franchise cricket, but from what i understand BCCI will pay the local board and the foreign players cricket board. From where you heard that ICC will be earning a payment from IPL.
Right now, Bangladesh is also having some good results from local league and Sri Lankan League is also in early stages, so I feel this all will be good for these small countries.
It depends upon how well they will advertise their tournament and how well they can attract the advertisers to invest in them, IPL successfully did that and so is the reason they were able to earn huge amount.