Has GBPUSD got the legs to break any further upward?

GBP putting in some strength over March / April - could this be signs of things to come? Really needs to break out of the 1.20 / 1.29 range and hold above current levels if it is going to push any higher. There's enough fundamental events in 2017 to give it that kick it needs though. Possible upside targets in the shorter/medium term: 1.37 then 1.44 and if it can nudge any higher may find resistance at the 1.48 zone. A rejection at the top of the current range where its now trading will obviously have 1.20 as its base but in between that 1.255, then 1.237 could be possible targets?