In my opinion no it will not come to 50$ but I think it will down upto 150$ I set my buy order on 150$ hope that execute because I think the crypto Sale is going and I fill my bags for long term.
I also think so, maybe it will hit 150 dollars but not for a long time, because not entailing loss price for miners in 180 dollars, if ethereum will cost cheaper for a long time he can really die ).