This could spell trouble for the fragile global economy, as triangles are quite reliably terminal moves. this could be the USDJPY's last breath scraping new highs before larger deflationary pressures take hold.
Arguably in a deflationary environment the yen will be of the strongest currencies out there, stronger than the USD. The BOJ has been fighting hard to keep it weak.
Deflationary pressure is slowing of the global economy.... stocks produce less dividends, therefore they become worth less and are sold for currency. As stocks fall the economy becomes worse, forming a chain reaction....
I dont mean to say that EW analysis causes trouble obviously, but It does forecast trouble at this point, and being one of the only TA very much in touch with the crowd, it should be considered as fundamentally important.
If the chart suggests weakening JPY (break out upwards as per your arrows) doesn't that mean BOJ has succeeded in their task? And by your definition, if JPY is weakening against USD does it not imply the economy actually isn't deflationary?
Or are you saying that failure to reach 'd' implies a bearish turn down and failure of this wedge pattern, hence strengthening JPY?