I've been playing Civilization V for ten years. I'm skeptical they're going to be able to build a new Civ that will pull me off of it. I consider it the nearly perfected version of the franchise (opinions widely differ of course). Maybe in another ten years. Everything I've read about Civ VI indicates the overall gameplay is inferior (although obviously not graphically), there's no great reason to move on to it.

I'm still playing Age of Empires and Supreme Commander: Forged Alliance, so I may just be trapped in a time vortex.