They would also inherit the mountain of debt from Paramount
Long term debt that they could fairly easily pay off with the revenues from Paramount, especially if they're able to streamline their operations.
Again, if Sony is able to take Mission Impossible and successfully reboot it without Tom Cruise and invest significant money into Star Trek, TMNT, Avatar, and Spongebob, these are all properties that would have massive returns across media. It would certainly be worth the cost and the debt.
You leverage that increased revenue and operating income to continue to grow.