With PR leaving and so many new ones, it makes me think we're entering a new era of gaming.
I see what you mean, but not completely sure that i agree. Twillight struggle is still there, Through the ages has had a remake, and you can see Caverna as an improved agricola (for most people).
The only one really new is Pandemic legacy. The others in the top 10 are just better versions of the same old concepts.