There is more. The fact that he's stuffed full of extra data and being used as a secret, portable hard drive by the Delos board.
The producers didn't pick a host at random for that. They chose him because the actor did such a good job and (probably) because they can get some great drama out it being him, with all his history in the park and with Dolores.
I'm not sure about spoilers for season 2 by the way? Because returning cast definitely hints at things and if some actors, especially those who were playing human characters, are announced then it (probably) confirms that they're alive, and not announcing them suggests that they're dead.
What does the MW hive mind say about spoiling these announcements?