If Ebrahim Raisi is found alive, this question still resolves to the next president after him.

This question resolves to the next person elected as permanent President of Iran. According to the NYT:

Iran’s law stipulates that if the president dies, power is transferred to the first vice president and an election must be called within six months.

If Ebrahim Raisi is confirmed dead and Mohammad Mokhber is appointed President in an interim capacity, that does not count for the purpose of this market. If he is then elected, that will count.