Not an option, since the studios you mentioned (other than WB, which is owned by AT&T) are peanuts compared to Fox. Make no mistake, Comcast isn't gonna give up on the pursuit of the Fox's entire assets. That right there is their entire dream to seize the moment of being the next Disney of the century. Although given that the odds are highly stacked against them, never say "never". Maybe Comcast has something surprising up its sleeves, but who knows they might succeed at this point.