In PowerPoint, there are theme variants, which provide different color schemes for a theme.
In Excel, there is a Recommended Charts feature, and PivotTable Slicers. In Word, there is a new Design tab, an Insights feature, which is powered by Bing, and real-time co-authoring.
Microsoft Office 2016 for Mac has new features in the Mac release include an updated user interface that uses ribbons, full support for Retina Display, and new sharing features for Office documents.