When will the bch support to Segwit
Probably never.
And that's a
good thing.
There is no probably about it after the fuss that was kicked up about segwit they would probably let the chain die rather than backtrack if something like lightning takes off in a big way that requires segwit
Problem: Segwit is not architecturally required for Lightning. Hell, even lack-of-malleability is not architecturally required for Lightning. And segwit is not required for lack-of-malleability.
The discussion on this point within the Bitcoin Cash community is quite muted ATM - there are bigger fish to fry. However, BU had previously discussed the idea of a malleability fix quite extensively. If my reading of the tea leaves is correct, the prevailing attitude was
leaning towards 'malleability fix yes, segwit no'. Your mileage may vary. Not to be used for the other purpose. Forward-looking statements carry some risk. Keep chainsaw away from testicles. Objects in rear view mirror may be larger than they appear.
the mystery miner, aka jihan wu, ...
While that is a reasonable inference, do you have any evidence to go with that assertion?
has hundreds of millions of unspent bcash piling up. they should apply to him. i'm sure he'd like to spend some of it.
If instead it is Satoshi mining (OK, no evidence, but just accept the postulate for the sake of the hypothetical) there's plenty of evidence suggesting he has no need to cash in anytime soon (i.e., at least 980,000 BTC).