GBPUSD is now in uptrend from 1.5272, and the rise extended to as high as 1.5973. Further rise is expected next week, and next target would be at 1.6300-1.6400 area. Support is at 1.5800 followed by 1.5630, as long as these levels hold, uptrend will continue.
For long term analysis, GBPUSD has formed a cycle bottom at 1.5272 on weekly chart. Another rise towards 1.7000 would likely be seen in next several weeks.