My contrarian frame of mind has me thinking that GBP is working on a major low. Monthly and weekly charts below.
The most interesting thing about the monthly chart is the fork positioning when set at points A-B-[iii]. If forecasted the wave [iv] bounce and price is now testing the lower channel. I think it smart to allow for this to be the low though it can bounce off the channel and retest it early next year. There is also positive divergence building in the Adaptive CCI which portends at least a bounce.
On the weekly chart, I have penciled in a primary and an alternate count. The difference between them is how to treat the current low, as a (v) or as a (iii), and that depends on whether you start counting down from January 2018 or April 2018. I like the former, hence why it is primary.