DEX will still having a hard time to grow, people now are trusting more on centralized exchange, and despite the fact that there is a halving schedule this year but we can't say that bitcoin will rise due to the pandemic.
When you created this post, you don't consider other bad factors such as this pandemic, so I'm wondering maybe you'll change your prediction now that we are seeing how our economy has been struggling.
From what I have assessed about DEX, it is only a secondary trading tool. This means that when CEXs encounter problems, DEX will be a backup plan. because even Binance DEX does not make me happy about the trading volume and trading tool there. There is no stop, no big volume and the price is always very big difference. You may even pay more fees when using CEX. so I still do not appreciate DEX for the time being.