I actually agree on $5-7 worst case scenario.
What i will be doing in the meantime...absolutely nothing, but will probably start buying eth for $$ OR even btc (less likely) at those prices.
This might be good for mining as POS could be further delayed, naturally.
Clearly, btc has at least temporary (or maybe permanent) edge now, until segwit is relesed and LN is started.
An unlikely failure of segwit and/or LN and the leadership roles might reverse once again.
If the price goes down to $5 or below, it is not profitable for many people with high electricity price. So it does not help.