FYI, this was flagged in the big Kickstarter update for this release. Here's a re-post of that info here in this thread...
Simplified Content View
Beginning with this release, everyone will start out with a simplified organizational view of their content. This should make Realm Works much more accessible to new users, plus many veterans will also find this presentation format preferable. In a nutshell, all of the different categories upon which content is built are now grouped together into more general types (people, places, things, etc.). If you decide you want the more detailed view, simply go to the Manage ribbon bar, click the Preferences button, and the choose one of the alternate options - the old view is at the bottom.
Hope this helps!