Nothing is permanent in the world, bitfinex scam is history now, people who have faith in bitcoin will continue to invest in it and that will gradually take price to higher level in future.
Investors will forget about the Bitfinex scam or hack very soon and the will start investing in the bitcoin again.
I think people have already started to buy bitcoins again and that is the reason we are seeing slow price rise at a moment, and if it continues then we will reach $700 very soon.