But what does it mean for crypto?
means that we will not see direct interventions of Jihan Wu
Will Bitcoin Cash get dumped into oblivion?
this is very difficult to evaluate, but you can look at their thread:
[ANN] Bitcoin Cash - Pro on-chain scaling - Cheaper fees
Will Bitmain jump to defend BTC against Craig Wright like it did for BCH?
It's hard to say that.
Do you expect a change in their corporate strategy?
yes