Pound/Sterling may hold some surprises. I have spotted a major curve suggesting probability for the upside. Just don't expect it go go up in a nice smooth way. Brexit is likely to hold some favourable surprises for GBP/ pairs in the longer term. Into April, expect high volatility and trouble.
I start off with the daily time frame and move into the 4H time frame where there could be potential upside. But it's not going to be easy.
I can't see the future. If it goes north who's to say it's not a dead-cat bounce? ;) :)