GBP/JPY edged higher to 166.23 last week but reversed from there. The development argues that corrective pattern from 168.67 is extending with another falling leg. Initial bias is mildly on the downside this week for 160.37 support. On the upside, above 165.13 minor resistance will turn bias back to the upside for 166.23 resistance again.
In the bigger picture, up trend from 123.94 (2020 low) is still in progress. Sustained break of 61.8% retracement of 195.86 (2015 high) to 122.75 (2016 low) at 167.93 will be a long term bullish signal, and could pave the way back to 195.86 high. This will now remain the favored case as long as 155.57 support holds, even in case of deep pull back.
In the longer term picture, rise from 122.75 could be the third leg the the pattern from 116.83 (2011 low). Further rise will remain in favor as long as 55 month EMA (now at 149.84) holds. Sustained break of 61.8% retracement of 195.86 to 122.75 at 167.93. will pave the way to 195.86 (2015 high).