Microsoft is currently hosting its Windows 10 and is expected to announce new hardware products and preview the next version of Windows 10 (codenamed Redstone 2, which is scheduled to be released next spring).
Rumors also suggest that Microsoft will announce a new All-in-One PC (maybe even a few models) under the Surface brand. It is also expected to introduce some new accessories such as the Surface Dial, a standalone device to help users use a digital pen. We also expect to see new Surfaces.
On the software side, Microsoft is expected to announce the new version of Paint, which will likely be simply called Paint 3D.
Paint 3D will be a UWP app that will contain all the tools of the classic version, but is also expected to work with 3D objects, as we are so close to Windows Holographic that we may see that appear as well.

