A KDE developer who regularly blogs about all the work going into the KDE ecosystem through the likes of the Plasma desktop environment and the various applications, has given an overview of what they expect to see through 2021.
Sounds like there's plenty of exciting work coming up for KDE and Plasma this year! Nate Graham mentions in the latest post that amongst other things, they might finally have a "Production-ready Plasma Wayland session". A lot of work went into this through 2020 and before that Graham mentioned that it "felt like a mess" but a whole year of progress changed that. Through 2021 we can expect to see a "trend of serious, concentrated Wayland work to continue in 2021" and to be in a better shape for more people to use.
Quite a long time coming, as it's been said that Wayland would replace X11 for years now and having KDE in top shape with it will certainly help push it forwards even more.
Something else exciting coming up is a replacement for the 'Kickoff' application launcher (Windows users would know it as a 'Start menu'). There's a merge request open, which they expect to be available in the Plasma 5.21 release for the new design and it's looking really quite slick:
On top of all that they're looking to get fingerprint support ready throughout the entire tech stack including everywhere you would need it from the login screen and the lock screen to their KAuth authorization library.
KDE does always look impressive, with tons of options for customization and hopefully 2021 shall be a big year for it.