I've tried to get into other 4X's like Europa, Stellaris CK but the learning curve is pretty high admittedly! I'll give Europa another shot someday.
I actually welcome how each Civ tries to do something different, but the districts in 6 are such a huge addition that I'm a little sad they won't return in 7 in the same fashion. Nothing lights up my monkey brain like finding a +6 Campus/IZ/Harbor tile 
If there's one thing I worry for 7, it's that the fanbase for 5 is very vocal online. I enjoyed 5 for what it was at its time but going back now it seems TOO simple with the streamlined culture tree and the overemphasis on building Tall. It's a 4X game, turtling at 4 cities is no fun!! The less influence the better.
I started with Civ Rev I for the PS3, I appreciate the goofy art style in 6 haha.
but each update is engineered to become even more hostile to its userbase. Don’t even get me started on botting.
Instead of sending the Cum Extraction Unit, why don’t all IOF fighters just beat off in the barracks before going out? They can even make a game out of it idk