Just an idea.
Nothing major has changed from my previous ideas (a slight correction was made on the wave count).
If this scenario plays out, we could short at around 20800 (-21200).
Note: In this hypothesis, we are in the first corrective wave 2 (ABC) of a final, impulsive wave C (12345) of a zigzag (ABC) being the last componenet zigzag Z (ABC) of the whole downtrend, i.e., the triple zigzag (WXYXZ).