I think in this situation, that Justin Sun aka Tron should sell their Steem Stake thru a public auction. After Justin Sun bought the Ninja mine Stake and didn't even understood the Steem mechanics, community or agreements I think he should just admit it was a bad decision and try to sell the ninja stake in the best possible way.
He could advertise it that Steem becomes more decentralized by selling the Stake to private investors who believe in the new course of Steem.
I hope that we see something like this otherwise we have to deal with reckless dumping or another big investor with bad intentions.