The only thing we're sure that will happen to BTC during the halving s that the BTC block reward is going to be halved, therefore reducing the supply of BTC's, every other thing like the price pumping and BTC going to 100k and more is just speculation, we are not sure of it happening, though when supply is reduced and with the chances of demand increasing around the halving period, it is very possible that the price of BTC is going to pump very high.

Don't swallow every prediction you see of BTC online, so many people are just pulling numbers out of a hat, we cannot know for sure how high it is going to go or how low it can go too, we can only wait and find out for ourselves.