Reasonable narrator choice, but this just looks like Civ 6 again to me.
None of the changes seem particularly exciting.
The visual design is terrible again, just now it's terrible in a less-stylized but more lifeless way. Great.
Leaders are separate from civs, which is fine*, but I am a bit concerned we're going to get a fairly tacky/chintzy selection of leaders as a result.
There are three eras, and you have to change civilization in each one. This is kind of wack, honestly. Also your choices are apparently limited - some of the civs you have to "unlock" by making certain choices. I'm unclear on whether the era-changes happen for everyone together, or individually, but if it's the former, that's another part of the old fun of Civ deleted.
No more builders or the like, you just slap stuff down on adjacent tiles now.
Just not sure about any of that.
* = It does free them up to pick from a wider variety of historical figures, and to include historical figures whose civilization they didn't include, at least.