Take note though, when talking about the "calm before the storm", the "storm" they're referring to doesn't automatically mean a huge price move to the upward. It could easily be the opposite.
From what I understand after reading the
NewsBTC article, the trader is expecting a downward move as you say:
He claims that this bout of sideways trading is likely to resolve in a massive movement, and notes that he is leaning towards believing that the next move will favor sellers.
Bitcoin's trading range has shrinked almost every day, but it shrinks while also going lower at the same time. I'd guess a dump under $9k is going to trigger another very bearish market. But crypto trading is always full of unexpectedness, so I'd never trust these "pros" and "top traders". I'd rather just follow my gut feeling.