Really what's the draw to OneDrive for Business? Is it the ability to modify OneDrive documents directly using Word or Excel? As NextCloud and LibreOffice keep improving, I see Microsoft losing a lot of customers in this space.
LibreOffice just released 5.3 which has new cloud functionality.
https://blog.documentfoundation.org/blog/2017/02/01/the-document-foundation-announces-feature-rich-libreoffice-5-3/