If you don't saw it already – maybe read this postings (up to /28!): https://twitter.com/desantis/status/842919995717926912
If it's really true, we have a miner which can mess up and interrupt the Bitcoin Blockchain quite serious…
I would like develop a change in the PoW algorithm, just to get sure we have a countermeasure, if Jihan/Bitmain/MGMT/Ver are trying to takeover the network somehow.
I really don't like the idea of a hardfork, and changing consensus rules… But we have to face the reality that this can get pretty ugly – we should better be prepared – not be surprised if it really happens