Paramount CEO David Ellison’s pursuit of Warner Bros. Discovery is raising a central question: how far is he prepared to go to complete the deal? The effort could require billions of dollars beyond initial expectations and may become a prolonged corporate battle.

Ellison and Paramount’s leadership team had expected to spend much of the summer preparing to settle into new offices connected with Warner Bros. Discovery. Private expectations that the merger would move ahead now frame the uncertainty surrounding the proposed combination.

The situation has put Ellison’s financial limits and negotiating strategy under scrutiny. He may be willing to continue pressing for the transaction even if the process stretches over several years, but the potential cost could determine where he ultimately draws the line.

For Paramount, the pursuit represents more than a routine expansion attempt. It is a test of how much capital and patience Ellison is prepared to commit as the company weighs the value of joining forces with Warner Bros. Discovery against the risks of an extended fight.