GBP/JPY holds in bullish territories on the longterm outlook but is currently offered toward trendline support as the following will illustrate.
The price is in a bull trend and the M-formation might serve as a basis for bulls to get long on the front side of the trendline again. It is a reversion pattern that could see the price pulled into the neckline. However, that is not to say that there will not be more downsides to come in the coming days first of all.
The bearish wick on the prior 4-hour candle could well be filled in the next session or so.
The price is bearish on the front side of the bear trend and a filling of the 4-hour wick will mitigate a price imbalance on the 15-minute chart for a restest of 163 the figure. Bulls will need to get on the backside of the bear trend and break 163.50 horizontal resistance thereafter.