Boy, that's a tough question.
I'll say this, I don't think it last more than 3 days.
Maybe down today, Friday, and part of Monday. I would think by Tuesday, we would head up again.
Tha markets were way overbought before the sell-off started today, so we could get way oversold before we turn and blast off again.
I'll watch my indicators and let you know what I think as we go.