From my analysis of , the GBP is way over sold, and the political instability will not continue for too much longer. The one head wind this pair faces in the Greece issue. If greece defaults, then we may see this currency fall back, but perhaps only temporarily as NZD becomes less attractive for carry trades as GBP becomes more valued as a safe haven currency. The reality is that China is slowing, Australia is slowing and NZD dairy prices are slowing with a possible property bubble burst ahead. GB on the other hand has most likely bottomed or close to bottom as discussions take place in the future of possible rate rises persist. If sanctions are removed on Russia, you can be sure the net effect on the GBP will be positive as well.
Tomorrow will be a big day as GBP CPI is announced and NZD business confidence.