There is a very high chance that the PPS will be drawn to the gap. This is a true gap since it is made from the high and low of each adjacent trading day. I say this because a lot of people think a gap is made from open/close prices, but this is just simply not true. Another thing is that if a chart has a tendency to fill its gaps then that means it has even higher chances of filling any newly created gap.
Having said that, you are right and nobody knows 100% where this is ultimately gonna go tomorrow. So what can we do instead? Well... refer to the paragraph above.