Here's the actual announcement from Botnik, which clearly uses the phrase "predictive keyboards": https://twitter.com/botnikstudios/status/940627812259696643 You can actually experiment with the exact process used! The predictive text keyboards they created are available online: one for narration and one for dialogue.
narration: http://botnik.org/apps/writer/?source=d08198a9a936f791b7ffe1...
dialogue: http://botnik.org/apps/writer/?source=4210c86ded39e6380ad0e1...
If things had improved that much in NLP-land since I last played around with it, I would jump careers right now :-D.
AI-generated entertainment in general is going to be awesome.
They were really bad. Worse than bored of the rings. I enjoyed bored of the rings I didn't enjoy those.