I am not sure if people will prefer to use Uniswap or PancakeSwap in the future. I believe people won't stop to use top CEXs like Binance, Kucoin, Coinbase, or Kraken because they have good features for trading and have big volumes as well. But people will be more careful to manage their tokens, they probably won't keep their coins on CEXs for a long time anymore. They are aware that keeping coins on CEXs is high risk, CEXs can have a problem at any time. They can't secure their coins because CEXs that have a full control to the coins.