Holy shit a new IP from Cyan Worlds. Loved Myst, and was one of those people quite annoyed at the ultimate failure of their Project Uru, though as developments into the modern era and hindsight has shown, if even something like a Massively Multiplayer Star Wars would struggle so hard to stay relevant, a purely exploration and adventure focused game would had tanked.
Love that it's a completely new IP and it'll be using Unreal 4 too.