I think what will happen next is the dominance will fall for bitcoin because all money went in there and people are slowly realizing there is not much money can be made from bitcoin so they gonna move that to either usdt which will drop the price (happening as of right now) and then there will be some that will move their money to altcoins which will make the real difference because then we will have altcoins going up a ton and that is where the real money comes in.
Even 1% of bitcoin moving to some coin would make it go insanely high and earn you easily x2-x3 of your investment. That is what people forgot, it takes a lot to move bitcoin but as soon as that money starts to pour into other altcoins it will be super easy to move that money and then people will use that money to fuel more bitcoin and it will repeat itself until its unsustainable.
I dont think that is the case because Bitcoin is starting to be recognized by more financial institutions and even today it was announced that the NYSEs parent company International Exchange will start allowing futures contracts to be paid in Bitcoin. And the news from New Zealand stating that they will now allow employers to pay their employees with Bitcoin if they wanted is also great news. It just goes to show that Bitcoin is probably here to stay, but it has to decrease its volatility in order for it to be widely accepted.