first of all take a look at the latest analysis about GBPUSD which approves a "double failed Ab=Cd pattern"
after these failed Ab=Cd pattern we should see some downside moves which are shown in this chart with their targets, but here are two scenarios about this pair :
1. (which I expect) , the price will come down to the "price and time target" then because of breaking the neck line and being far from SL for new sellers, price will have a pullback to the broken support then (because of breaking the neck line of double top pattern) will have a sharp decrease.
2. the price will come down in the way of targets but won't break the neck line and will have some volatility there to finish the seller's time.