Printing will come, but it is not as high priority as other features. The main reason is that Realm Works data is meant to be used live at the table, so the GM can keep up to date with what they players have learned via progressive reveal.
When you print out a topic for example, you immediately lose out on a lot of powerful features Realm Works has to offer. Especially if you're already bringing it to your table on your iPad, we'd like to start leveraging the cloud so you can access your data in your iPad's browser. I'm pretty excited for that.
Again, that's not to say we won't be making printing available, or even that printing won't come until after everything else is done. But whatever we put into place will likely be basic and no-frills, at least for a while, since printed content is so different from the overall Realm Works vision.