You don't need to have a crystal ball. The price drop only happened because Saudi Arabia wanted to assert its dominance in the global market. With higher fuel prices, North American companies were investing in more expensive extraction methods that only become profitable when prices are high.
Saudi Arabia has been keeping its production down to drive up fuel prices and decided that enough was enough. They didn't even ramp up production to full capacity and it's been causing oil companies in North America to shutdown sites and lay off workers. Once Saudi Arabia decides that the oil companies get the picture, they will cut production again.
Then, even when prices rise, investors will think twice about risking their money to support oil extraction.