I think that your prediction is extremely unlikely.
If the BTC/USD price would drop to the level that you suggest this would be below
the current average cost of mining a single Bitcoin.

The miners are heavily incentivized to prevent this from happening, because combined
they have invested hundreds of millions of $ into mining hardware, other infrastructure
and stuff like bribes.

I elaborated on this in this thread:
Why the Bitcoin price is not going to fall below a certain price point