The W-formation is a reversion pattern that would be expected to draw in the price towards the neckline for a retest of the structure as illustrated above. However, from an hourly perspective, there is support that the bears will need to overcome in the 1.3380/70s near the 61.8% ratio:
There are a number of inputs from a fundamental basis that argues for an even stronger US dollar but from a technical standpoint, there is resistance on the 4-hour chart in GBP/USD as follows:

The W-formation is a reversion pattern that would be expected to draw in the price towards the neckline for a retest of the structure as illustrated above. However, from an hourly perspective, there is support that the bears will need to overcome in the 1.3380/70s near the 61.8% ratio:

Until this area of support is broken, there are risks of an upside continuation as hypothetically drawn on the chart above.