Iran heads back to Pakistan. What's on the table?

This was a pivotal week in the Iran war — an extension of two different ceasefires; a continued U.S. naval blockade in the Strait of Hormuz, which led U.S. forces to seize an Iranian ship that tried to wiggle past the blockade; and, as of this morning, an Iranian delegation headed to Pakistan for a second round of talks with the U.S., led by Foreign Min…