There are some screenshots in Sega's Flickr account. Check out the fifth one; it looks like some kind of world map, but it's pretty strange looking.
The game is called "End of Eternity" in Japan. The reason for the name change hasn't been revealed, but I suspect it's due to the book by Isaac Asimov of the same name, which is being made into a movie. Here's the first trailer for the Japan version: