Correction: If WX (not XY) is a zig zag pattern, then XY should be a triangle. Similarly, if it ends up being a some type of triangle, then a zig zag pattern is more likely.
My prediction is: flat (3-3-5) -> zig zag -> triangle
Also, I think point X might end up at the 0.236 level (~78) , not 0 (~82)