I had recently spotted a few hundred triangle charts like this. Also those ELOS / CYNO where triangles solving their road to the upside (one would have very difficult time to get them bearish anymore with their fundamendals) and I do believe it was a real turn for very major W3´s.
Well, that´s the another subject but I started to spot also these larger triangles a bit all over which have tendency to take reasonable agressive upside breake.
While tradittinal technical analyze is looking X line break-out for the chart like these triangles itself gives more attention for me, I am not entire sure but I think they are some kind of versions of ending point of W1 as leading diagonals. Once chart takes the most agressive response after that pattern is cleared out it cannot be much else as W3.
It is very new for me, I haven´t see this behaviour or triangle version before, until during the last weeks with many charts.
As cold as that I ended today for the conclusion those triangles are wave changes as W1 and W2. 
We´ll see if we live.
EIG.png