@pratik There's quite a bit coming (or here if you're on the beta). You can share / collaborate on files and now also folders, Files has been redesigned so you can see previews of files and meta data (name, file size etc.), external storage you can drag right off into iCloud, download manager to download directly to an iCloud location.
The majority of improvements are to Files itself, but iCloud Drive is best suited to be used in Files so the improvements kind of go hand in hand. If you're using Apple devices exclusive / primarily I can't see any reason to use anything else at all.