Should we wait for the exchange rate of 1.5000 for the pound?

I consider purchases for GBP / USD for the mid-term period. At the moment, analyzing the weekly price chart the medium-term bullish trend can be observed. The entry point can be considered after correction of the price to 1.3550. This situation  may be accompanied by:

• Mirror level in this range

• 50% correction for the fibrosis

• the approach to the weekly trend line