I believe the more Likely option is to see the D move to 100K this year or by early 2019 we are just waiting for a breakout or breakdown to confirm the next move.
I would like to remind everyone that a 250 Billion dollar market-cap is very small for how much hype and growth Crypto-currency saw through 2018 and you have to ask yourself is Crypto really only worth a 254B dollar market cap? I don't think so . Not with the demand from currency failure in developing countries , Inflation , Hackers , Centralized corrupt baking systems , this is becoming the most oversold market in the world very quickly for how much potential for growth it has.
even if we have support failure and have to take some more into tether ( have at least 30% USDT at all times ) then we will buy the dip later near the LOG trend line at around 3k to 5k .
I accumulate BTC and have some longterm that I never sell but its also good to put a stop loss with portions of your money (not all in or all out) if you have support failure so you don't have to ride the lower waves and can buy back cheaper.
Keep a clear head stay positive understand human psychology (people are in ultimate despair right now) and make trading plans for all scenarios