With each passing year, the Linux desktop ecosystem shifts and morphs from one darling to the next. Although it is sometimes challenging to tell, from month to month, which desktop will reign as the fan favorite, there are always signs that a particular desktop is going to rise in market share.
Three trends I always examine are evolution, usability, and modernity. I prefer my desktops to have evolved along with the needs of current trends and users, to be easily used, and have a modern design aesthetic. Bonus points are generally awarded for a high range of flexibility.