IMO, a lot has already been priced in the GBP. The turning point was 2+ years ago in (July?) when they had the Brexit vote. The direction back then was clear to go short on the GBP. To go in now would be little gain as most of the UK real estate, share equity, etc. have come down. Meaning over the past 2 years we've seen an exodus of 'capital flight' of wealth LEAVING the UK.

I'm curious what NZ's capital gains tax would have on it's currency. If it would trigger an exodus of $?