Most ICOs except some exceptional ones have been very weak in this long bearish market.
Almost ICO on 2017-2018 are already dead now, most of them are really scam ICO, fake team, fake whitepaper. If that project is good, then it should not on dumping even on bearish market. Because they are active on their project and have commitment.
Bitcoin going down to $1000 looks very unlikely since that will mean another huge dump for the crypto market.
It's possible that Bitcoin can go $1000 or in worst, below $1000. That could be the black swan of crypto if that happens.