I think Bitcoin will break the 20K before the end of the year.
After a successful lunch of ETH 2.0, In 2021, Ethereum will break ATH.
Cardano's new ATH is not far away due to their recent updates.

I've monitored the Stakenet(XSN) project recently. Sounds like a promising project to me. Their roadmap is unique and interesting. They are working on their own DEX, which will run by +2700 Masternode, making it completely decentralized and secure. I think this project has the potential to break their ATH in 2021.