OneDrive has improved Syncing of Files with making the experience feel more local on your device. Files on Demand allows OneDrive to provide you with the list of files you have in your OneDrive with the ability to simply select which ones you want to have local. Such as files you use more frequently, as well files you open locally and use frequently will automatically become on demand, making the experience much quicker in areas with slower internet connections as well.

More is coming over the next few months, what you will see is a trend in OneDrive becoming a Unified Xperience.