I do know they were talking about an app that would be available to monitor your OPC. They did not say anything about sending you screenshots, but they did, however, state that you could see your characters' hunger, thirst etc. It was said that the app will tell us what our OPC is doing, and would be able to change that from the app.
Let's say your OPC has been running the smithy since you logged off for the night. In the morning you could tell him to go rest for a while, and then go back to running the shop. At lunch you could tell him to go hang out at the tavern etc.
The detail and precision with which we can control our OPC, I imagine would rely on the precision of the preset codes given to us by the Devs, as well as our personal coding proficiency. And now that I think of it, I do not recall them saying anything about us being able to write code for the app, though I imagine it wouldn't be a difficult thing to do. At the very least the app could access our list of OPC commands and let us use any of the presets or any that we have written in game.
Anyone with any more information, please add on or correct me. Thanks!