I went back to a longer timeframe of bchusd and btcusd and found there were several periods of "phasic" activity (noted in blue):

So you could be absolutely correct; there may be a "phasic" change soon. I'll be keeping an eye on https://fork.lol/pow/hashrate, since any substantial increase in bch hashrate leads to a decrease in btc hashing (and price). Whether or not it is causal or merely correlated we will see.