Adobe's blog is saying that Elements 14 can do all the following new things. It can ..

  • Remove camera shake- Just one click will remove the camera shake blurs that come from unsteady hands.
  • Remove haze - you can now de-haze outdoor landscapes in one click, or use sliders for more control.
  • Add cool motion blurs.
  • Resize in seconds with a new Guided Edit
  • Make quick edits even easier
  • Add new, professional-looking motion titles in Premiere Elements
  • Create some visual drama by popping one or more colors in a scene and pushing everything else to black-and-white.
  • You can use Premiere Elements to edit and view 4K movies for the ultimate cinematic experience

There's much more too - more details can be found on their blog.