e-wave of the Expanding Triangle is forming a complex correction.
z-wave of the complex correction is in progress.
z-wave has just begun with its internal a-wave. It is now crucial to see what pattern it forms.
The c-wave drawn at end may or may not form a diagonal. This is just a possibility.
There are many other possibilities for z-pattern.. But this possibility of z-wave looks more probable to me. Lets see.