I’ve heard several questions from people wanting to know if Dropbox will be a part of iOS 11’s Files app. The answer is yes:
iOS users have been requesting better file management on iPhone and iPad for a long time. The new Files app, coming later this year, does just that, letting you more easily manage and access files in your Dropbox throughout iOS 11. Much like macOS Finder, Files will give you an easy way to browse, open, edit, move, rename, upload, create folders and download files stored in Dropbox with your iOS device.
Dropbox is my file system. This is going to be huge for how I work.