First off, it looks like the Solus devs plan to re-implement support for the next-generation Wayland display server in their GNU/Linux distribution, though the ISO images will come with the 2D X.Org graphics driver enabled by default and use open source drivers for Nvidia GPUs as they want to further improve Nvidia Optimus. While the main Solus edition will still be shipping with the Budgie 10 desktop environment, which will see a QoL (Quality of Life) update with some improvements to the tasklist and other core components, it looks like the Solus MATE Edition is gonna get some love, as the devs plan to bring it up-to-date and make it prettier.