Sorry, I don't know when, I just know that it will. Not soon, I hope. I wish it takes as long as possible so I can save some money. I too want to buy some and I am currently out of fresh cash.
The irony, I knew since late June 2018 that Bitcoin will go as low as $1,277.00 USD/BTC and now, I am not in a position to benefit much if it would happen today. So frustrating. I guess miracles are no substitute for skills and hard work.