It's not for certain yet, but if prices do make a run for the moving average shown (which is the VWAP or Volume-Weighted Average Price from the low), then a count like this seems to make the most sense and provide tentative degree labels.
|ES Futures - 4 Hr - Tentative Count|
In this tentative count, wave v should become longer in price and time than wave iii and this would likely bring price down to the VWAP, and/or slightly beyond. The reason the count is still tentative is that diagonals are relatively low probability patterns that must prove themselves out in every detail.
This is still expected to be quite a whippy count, and the eventual retrace - if the pattern occurs - allows for variation in the depth of the retrace. Further, we do not know, if the first five waves down will be (i) or (a). And if it is (a) it could be part of an even larger diagonal, so we must take it a step at a time.
Have a good rest of the weekend.