This wave should complete at 2185 - 2.618 of (i), beginning (iv) with a target at 1800. (v) has a target between $3180 and $4000.
I have noticed a tendency for BCH to like 6.236 extensions, much like BTC likes 4.236. This makes 3900-4000 a likely upper ceiling as the 6.236 of (i) is in that area, as well as 2.618 of ( iii ).
More generally about Waves: the climb to 950 is not to be regarded as wave I, since the retrace from 2800 intruded into the range of wave I - something wave IVs do not do.
This is a personal idea and should be taken as such, it is not trading advice. If you would like to trade BCH, please do your due dilligence as it's one of the most volatile coins out there.
about the inv. correlation: it's not as precise anymore, BTC dipping is more of a catalyst than a dollar-for-dollar cannibalization.