The recent bullish momentum for Bitcoin is likely to be sustained because key technical levels have been breached, and the fear from China's tightening regulation has largely dissipated, said Florian Grummes, managing director of Midas Touch Consulting. "We have a good chance to see $100k by the end of the year, maybe even higher. Of course, that would spark an altcoin season again. If Bitcoin really continues to run, I would say that the $60k $65k level is the last resistance of the bears. If there is nothing coming for them, then Bitcoin is off to the races and it could be $100k or even higher, $150k is possible towards January," he said.