Wait for the gap to fill then LONG it (i.e. time to SHORT now)Simple and straight forward. Wait till the CME futures gap is filled (around 20k), then long the crap out of btc.
In the meantime feel free to short it!! Just be careful, actual btc may not drop as low while futures may do a very quick dip to 20k area before bouncing hard. Close to bottom is better than exact bottom of the dip.
Cheers!