Of course, a lot of people will just sell. They didn't buy all their coins during the winter just to be swag, they all have the plan to sell it, but they won't wait to see BTC/$20k, they will do it perhaps around $8k.
I'm curious to see if BTC will go again below the $4,000 line now.
I am also a holder and till I see Bitcoin get to $10k, I am not going to exchange it no matter the fluctuation that may arise within the time it accomplish that, for now, I really doubt if bitcoin will go below $4k again.
People filled their stock of bitcoins while the price was between $3,200 to $4,200. So, of course, they don't plan to sell them soon, even if the BTC continues its small rise. But if its value goes back to the $8,000, you can be sure they will start slowly to resell. Most people won't wait for a $15k-$20k and they aren't ready for another "slap to the moon" with a 70% crash later.
Well whales can play with the price and can easily pull it down again below 4k but those that still remain holding btcs aren't weak hands anymore so yeah i doubt we'll go far down if ever. Perhaps in a few weeks we'll consistently be above 4k.