Yes, the chain will split. Just sit tight and don't panic. It will ultimately be a good thing because the civil war will be over. Life is good.

Edit: To answer your other questions, nobody knows. There is never a dull or predictable moment in the crypto space, so enjoy the ride.
The chain will split.
Not necessarily...
Just sit tight and don't panic.
Of course panicking is not good, but everyone will be dumping their Bitcoin Cash immediately so I think we should also. No point in selling for pennies... think about it.
It will ultimately be a good thing because the civil war will be over.
Yes, this whole ordeal has been a pain to deal with.