The yen is poised to make a secular run based on how narrow its Bollinger bands are over a 200 week period.  You would have to go back 30+ years to see anything like this.

In the short run, it looks like the yen may make a run for the upper weekly Bollinger band.  Of course, the bands could get even narrower if its generates an even tighter range over the next year, but this is simply not sustainable.  At some point, it is going to make a break–and it will be sustained for likely many years.

If the direction is up (stronger yen) then in theory it should support commodities and the PMs.  As for now, commodities are in the toilet, but if the yen is any guide, then perhaps the bear market is very close to being over.