As of today, it appears that the subsequent wave "D" has bottomed at the lower trendline of the triangle at $16.801 and begun an impulse upward, which I will now consider to be the first leg of wave "E" which should be the final wave of the triangle prior to a major decline.
I estimate that wave "E" will peak at just slightly above wave "C"'s extreme, around $17.70-80, and probably do so in early August when it hits resistance at the downward sloping trendline from the two peaks in 2012 (the only long-term trendline crossing through this forecasted price area). Following that, there should be a 5-wave impulsive thrust which pulls price down by $4.00, to around $13.75. At that level, my view is that price should reverse into (at least) a three-wave ABC rally (possibly with the intermediate wave "B" taking the form of a triangle) targeting $27 or $32 (i.e. about 0.382 or 0.5 retracement of the decline from 2011-2015.