There will be separate TV media and digital rights up for grabs.
There will be also rights for each region separately. A company can bid for either digital or TV rights or both.
Similarly, a company can bid for just India rights. Or just USA region rights. Or combined world wide rights.
BCCI will then choose the highest bidder.
Last time around, if we see, Facebook was leading in digital rights and Sony was winning in TV media rights individually.
But Star gave a consolidated bid for all regions combined with both TV media as well as digital rights. The consolidated bid were higher than both Facebook and Sony combined. Hence, Star won the entire rights worldwide. They then retained the broadcasting for India. And sold off other region rights to other companies by themselves.