President Erdogan has played blurred clips of the alleged shooter’s video at campaign rallies in several Turkish cities.
Many of the women were tortured during months in custody, relatives and rights groups say.
Saudi officials have hinted at a pardon. Human rights groups say the women should be released immediately.
Kenya suffered the biggest loss among the 30 nationalities represented on the flight, losing 32 of its citizens.
It is not clear whether Saudi Arabia intends to vigorously pursue legal charges or release the activists under the cover of a judicial process.
Princess Reema bint Bandar’s appointment comes as the kingdom is trying to rehabilitate its image after the killing of journalist Jamal Khashoggi.
He said his government has additional “documents” related to the case that it has not shared.
A bipartisan resolution is part of intensified congressional criticism of the kingdom’s human rights record.
Evidence collected by the U.N. team affirms the journalist was brutally killed in a Saudi government plot.
American evangelical pastor Andrew Brunson's detention has become a flash point in the rapidly worsening relationship between the United States and Turkey.