Yes it could well be timed with the difficulty adjustment.
Another way to suss out the next attack is to watch out for any "celebrity appearances" of Roger Ver on mainstream tv / mainstream youtube. Check his twitter feed and as soon as you see a pretty good hit job video, get prepared.
You can pretty much guarantee that those will be pumped into, as has been the case for the last three attacks.
Aw, yes, great idea.
After the last 2 put me through some serious stress, subtracting years off my life, I plan to capitalize on the next one. Gonna scoop up some BCH, sell some of my BTC stack to be ready to buy in on that dip, and PROFIT, might as well make the most of those clowns' shenanigans.