There is still quite a bit of snow hanging on, on Helvellyn. A number of freeze thaw cycles have been improving it's quality and the cold nights have been freezing the turf down. The freezing level is forecast to be well above the tops for around 36 hours from tonight what snow survives this will then freeze down as freezing level should then drop to 350m on Friday.
On high north facing crags the strong winds and snow that is forecast from Friday afternoon onwards coupled with the recent cold nights, should bring some mixed climbing into condition. We need to wait and see what happens. Gable crag would be my top choice but it all depends on how warm it gets tomorrow.