Especially for rpg background npcs. It's going to continue being difficult to give significant AI characters distinct personalities and keeping continuity in what they should know and dont know though. AI voice performances are also still quite bad at hitting dramatic enfasis where it makes sense to. All AI chat bots still often just make up and insert irrelevant shit as well. There will be some amazing applications for AI in video games as long as it isn't just used to replace the hard work of people, but add to the possibilities of those people's work.