Following on March 2's "Ayatollah Khamenei's Son/Heir Has Been Removed From The Line of Succession" we see at Iran International, March 3:
BREAKING NEWS
EXCLUSIVE
Ali Khamenei's son Mojtaba named Iran's new Supreme Leader

Iran's Assembly of Experts elected Ali Khamenei's son Mojtaba as the next Supreme Leader under pressure from the Revolutionary Guards, informed sources told Iran International.
That's it, just a quick hit, but probably more credible than the earlier post which, as was pointed out, was from one of the open source intel sites.