The creators of Endless Space aren't done with the 4X strategy genre (eXplore, eXpand, eXploit, and eXterminate), and they're heading from sci-fi to fantasy with Endless Legend. You can get a taste today if you'd like on Steam by way of the Early Access Program.
If there's one genre that will never die, it's strategy games. No matter what happens in any other arena of the gaming world, strategy has been chugging along for decades now, and there will always be an audience for them -- myself included!
Endless Legend [Steam]